jura J8 Twin Superautomatic Espresso Machine
Specifications
- Product Name: J8 twin
- Model: NAA
- Languages: English (en), Spanish (es), French (fr)
Product Information
The J8 twin is a versatile machine designed for daily operation. It features various control elements for customization and maintenance actions to ensure optimal performance.
Important Safeguards
Ensure to comply with the provided instructions for safe usage. Failure to do so may result in injuries or damage. Follow basic safety precautions including reading all instructions, avoiding contact with hot surfaces, and unplugging the machine when not in use.
Control Elements
Familiarize yourself with the control elements of the machinefor efficient operation. Refer to the user manual for detailed information on each control.
Daily Operation
Switch the machine on and off as needed. Fill the water tankwith the recommended amount of water and perform maintenance actions regularly to keep the machine in good condition.
Machine Settings
Adjust the machine settings according to your preferences for acustomized experience. Refer to the user manual for guidance on setting adjustments.
Display Messages
Monitor and understand the display messages shown on themachine. Refer to the manual for explanations of different messages that may appear.
Troubleshooting
If you encounter any issues with the machine, refer to thetroubleshooting section of the manual for guidance on resolving common problems.
Transport and Environmentally Friendly Disposal
When needed, transport the machine carefully and dispose of it in an environmentally friendly manner following local regulations.
Frequently Asked Questions
Q: What should I do if the machine malfunctions?
A: If the machine malfunctions, unplug it immediately and contact the nearest authorized service facility for examination, repair, or adjustment.
Q: How often should I perform maintenance actions on the machine?
A: It is recommended to perform maintenance actions regularly as specified in the user manual to ensure optimal performance and longevity of the machine.
This is the safety alert symbol. lt is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
Follow the basic safety precautions
When using electrical appliances, basic safety precautions shall always be followed, to reduce the risk of fire, electric shock, and/or injury to persons, including the following: Z Read all instructions. Z Do not touch hot surfaces. Use handles or knobs. Z To protect against fire, electric shock and injury to persons, donot immerse power cord, plugs, or body of machine in water or other liquid. Z Close supervision is necessary when any appliance is use d by or near children. Z Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts, and before cleaning the appliance. Z Do not operate any appliance with a damaged cord or plug or after the appliance malfunctions, or has been damaged in any manner. Return appliance to the nearest authorized service facility for examination, repair or adjustment.
product overview
IMPORTANT SAFEGUARDS
Z The use of an accessory attachment not recommended by the appliance manufacturer may result in fire, electric shock, or injury to persons.
Z Do not use outdoors. Z Do not let the cord hang over the edge of a table or counter, or touch hot surfaces. Z Do not place on or near a hot gas or electric burner, or in a heated oven. Z To disconnect, turn any control to `OFF’ then remove plug from wall outlet. Z Do not use appliance for other than intended use. Z Use extreme caution when dispensing hot steam, hot water or hot coffee.
SAVE THESE INSTRUCTIONS. Pass them on to any subsequent user.
Intended use
The appliance is designed and intended for household use only. It shall only be used for coffee preparation and to heat milk and water, according to these instructions. Use for any other purpose will be deemed improper. JURA Elektroapparate AG cannot accept any responsibility for the consequences of improper use.
People, including children, who Z do not have the physical, sensory or mental capabilities to use the appliance safely or Z are inexperienced or lack knowledge in how to use the appliance safely
must be supervised by a responsible person when using it, or must be instructed in how to use it correctly.
Special power cord set instructions
Z A short power-supply cord is to be provided to reduce risks resulting from becoming entangled in or tripping over a longer cord.
Z The cord shall be arranged so that it will not drape over the counter top or table top where it can be pulled on by children or tripped over.
Z This appliance has a 3-pin grounded plug. Z Do not modify the plug in any way.
IMPORTANT SAFEGUARDS
Extension cords are available an may be used if care is exercised in their use. If the user chooses to use an extension cord,
Z the marked electrical rating of the extension cord should be at least as great as the electrical rating of the appliance, and
Z if the appliance is of the grounded type, the extension cord should be a grounding type 3-wire cord, and
Z the longer cord should be arranged so that it will not drape over the counter top or tabletop where it can be pulled on by children or tripped over.
WARNING
To reduce the risk of fire or electric shock, DO NOT remove any service covers. DO NOT modify the appliance in any way that is not described in these instructions. NO user serviceable parts included. Repair MUST be done by authorized personnel only.
In the event of signs of damage, for example if there is a smell of burning, unplug the machine immediately from outlet and contact JURA customer service.
CAUTION
This appliance is for household use. Any servicing other than
cleaning and user maintenance shall be performed by an authorized
service representative: Z Do not immerse base in water or try to disassemble. Z Do not put the appliance or any individual parts in the
dishwasher. Z Check voltage to be sure that the voltage indicated on the
name plate complies with your voltage. The name plate is
located on the underside of the appliance. Z Never use warm or hot water to fill the water container. Use
cold water only. Z Keep your hands and the cord away from hot parts of the
appliance during operation.
There is a risk of scalds or burns on the spouts and the cappuccino frother / nozzle.
Z Keep children away. Z Do not touch any hot parts. Use the handles or knobs
provided. Z Ensure that the cappuccino frother / nozzle is correctly fitted
and clean. If incorrectly fitted or if they become blocked, the cappuccino frother or its parts might come off.
IMPORTANT SAFEGUARDS
Z Never clean with scouring powders or hard implements. Z Ensure that the ventilation slots are not covered. Z Never pull out the drip tray during the brewing process. Only
pull the drip tray when the display instructs you or when the appliance is ready for use.
NEVER DO (or you will void your warranty protection):
Z Never fill instant coffee, chocolate mix etc. into the bean container or ground coffee funnel (filler funnel for ground coffee). It will damage the functioning of the brewing chamber.
Z Never fill sugar coated coffee beans into the bean container. In case of doubt, call your dealer.
Z Never fill anything other than coffee beans into the bean container (no chocolate, no rice, no nuts, no spices, nothing other than roasted coffee beans).
Z Never fill frozen beans into the bean container. If you store beans in the freezer, let them thaw 3 to 4 hours before filling them into the bean container.
Z Never fill anything but fresh, cold and clean water into the water tank, except when decalcifying.
Z Never use mineral or carbonated water. You can use tap water, bottled water, spring water and reverse osmosis water.
Z Never do anything with the machine which is not described in these instructions. In case of doubt, call your dealer.
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2 Control elements
2 Control elements 15
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1 2 3 4
J HOT 5
J HOT
6
J HOT
7
8
9 10
Figure: Your machine may look different than the one shown.
2 Control elements
q Bean container with aroma preservation cover w Grinder adjustment switch e On/Off button Q r Touchscreen display t Milk system with professional fine foam frother (height-adjustable) z Coffee spout (height-adjustable) u Hot-water spout i Cup platform with aperture o Insert for drip tray p Drip tray a Coffee grounds container s Power cord (permanently connected or plug-in) d Water tank with cover f Powder chute for ground coffee with cover (removable) g Service socket with JURA Wi-Fi Connect (under cover) h Filter casing j Container for milk system cleaning k Syrup attachment l Filler funnel for ground coffee y Measuring spoon for ground coffee
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3 Preparing and using for the first time
3 Preparing and using for the first time
Setting up the machine
T Choose a spot for your J8 twin which protects the machine against overheating. Ensure that the ventilation slots are not covered.
T Place the J8 twin on a horizontal surface that is not sensitive to water.
Filling the bean container
The aroma preservation covers on the bean containers ensure that the aroma of the beans is retained for longer.
NOTICE
Coffee beans which have been treated with additives (e.g. sugar), ground coffee or freeze-dried coffee will damage the grinders. T Only use roasted, untreated coffee beans to fill the bean
container.
Determining the water hardness
T Remove the aroma preservation cover. T Fill the bean container with coffee beans and close the aroma
preservation cover.
When you use the machine for the first time, you must set the water hardness. If you know the hardness of your water, go straight to the next section. If you do not know the water hardness, you can find this out first: T Hold the Aquadur® test strip supplied under running water for
one second. Shake off the water. T Wait for about 1 minute. T You will then be able to read the degree of water hardness from
the discoloration of the Aquadur® test strip and the description on the packaging.
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3 Preparing and using for the first time
Level
Display German Degrees of general Parts per
Indicator Strip number
Degree (°dH) hardness (°dGH) million (ppm) of `reddish’ fields
Not active
Very soft water
<3
<3
< 53.4
None
Soft water
> 4
> 4
> 71
1
Hard water
> 8.4
> 8.4
> 150
2
Very hard water
> 14
> 14
> 250
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First-time use
J WARNING
If the machine is operated with a defective power cord, there is a danger of potentially fatal electric shock. T Never use a machine which is damaged. T Never use a machine which has a defective power cord.
NOTICE
Milk, sparkling mineral water or other liquids can damage the water tank or the machine. T Only fill the water tank with fresh, cold water.
Precondition: The bean containers have been filled. T For machines with a plug-in power cord: Connect the power
cord to the machine. T Insert the power plug into a power socket. T Press the On/Off button Q to switch the J8 twin on.
`Choose language’ / `English’
E To display more languages, tap 9 or 0 until the desired language comes into focus (e.g. `English’).
T Touch `Save’. appears briefly on the display.
`Unit’ `ml’
E To switch between ml and oz, tap 9 or 0.
T Touch `Save’. appears briefly on the display.
`Water hardness’
E Please refer to the section above for a description of how to en
determine the water hardness.
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T Touch 9 or 0 to change the water hardness setting.
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3 Preparing and using for the first time
T Touch `Save’. appears briefly on the display, `Insert filter’.
T Remove the water tank and rinse it with cold water. T Open the filter casing.
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T Insert the CLEARYL Smart+ filter cartridge. T Close the filter casing. T Insert the filter casing into the water tank.
T Turn the filter casing clockwise until it audibly clicks into place. T Fill the water tank with fresh, cold water and reinsert the tank.
E The machine automatically detects that you have just inserted the filter cartridge.
`Filter operation’ `Filter is being rinsed’, water flows directly into the drip tray. `System is filling’ `Empty drip tray’ T Empty the drip tray and put it back into the machine. `Filter operation’ `Connections’ / `Wi-Fi connection’
T If necessary, scan the QR code with your mobile device to download the JURA app (J.O.E.®). E If you would like to connect the J8 twin to your home network, tap `Connect’ and follow the instructions on the display. You can also establish the connection later on (in the machine settings under `Connections’).
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3 Preparing and using for the first time
T Touch `Next’. `Connections’ / `Connect accessory’
E You have the option of connecting the J8 twin to the JURA Cool Control milk cooler (wireless connection). To do this, tap `Connect’ and follow the instructions on the display.
T Place one receptacle under the coffee spout and another under the professional fine foam frother.
T Touch `Next’. `Machine is rinsing’ / `Milk system is being rinsed’ The start screen is displayed. Your J8 twin is ready for use.
Managing your J8 twin the JURA Cockpit
The JURA Cockpit allows you to manage your J8 twin. Tap at the top to open the JURA Cockpit.
Symbol Meaning
f
`Machine settings’ area (green)
c
`Maintenance’ area (blue)
$
Filter mode
#
The `Coffee Eye’ function (for cup detection) is enabled
Run a self-diagnosis to check the maintenance status of your J8 twin
¦ (white) Your J8 twin is connected to the network and/or Cool Control via JURA Wi-Fi Connect
¦ (red) No connection to the Wi-Fi network
Connecting milk
Your J8 twin creates fine, creamy, feather-light milk foam with a perfect consistency. The most important requirement for frothing milk is a milk temperature of 3946 °F (48 °C). We would therefore recommend using a milk cooler or a milk container. T Remove the protective cover from the professional fine foam
frother. T Connect the milk pipe to the professional fine foam frother.
E The milk system of your J8 twin has a connector HP3 and an
interchangeable milk spout CX3.
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T Connect the other end of the milk pipe to a milk container or a es
milk cooler.
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3 Preparing and using for the first time
Establishing a Wi-Fi connection
Your J8 twin can be connected with your JURA app (J.O.E.®).
Precondition: J.O.E.® is installed on your mobile device. The JURA Wi-Fi Connect is inserted into the service socket of your J8 twin. T Tap at the top to open the JURA Cockpit. T Touch the `Machine setting’ f symbol. T Tap `Connections’. T Tap `Connect’. T Add a new network in your JURA app (J.O.E.®) and follow the
instructions.
4 Preparation
J WARNING
Hot coffee, hot steam and hot water can cause scalding. Scalding is a serious burn. T Use extreme care when handling hot liquid or steam. T Allow liquid to cool down before drinking. T In the event of scalding, rinse affected area with cold water and
seek medical attention. T Keep children AWAY.
Products shown on the start screen:
Start screen page 1 Espresso Americano Lungo Hot water
Start screen page 2 Café latte
Latte macchiato Espresso doppio Hot water for green tea
Coffee Sweet Latte
Macchiato Cortado Cappuccino Flat White
Portion of milk foam Flat White Extra Shot
2x coffee Latte macchiato Extra Shot
Basic information about preparing drinks:
Aim Change bean container and the coffee strength of a single product Change the amount for a single product
Display more products
What to do See next section, `Preparation with preselection (Aroma Selection and Specialty Selection)’ During preparation, tap 9 or 0 On the start screen, touch 9 or 0
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4 Preparation
Aim Stop preparation Permanently change the consistency of grind, coffee strength, quantities and other settings for any given product Repositioning or replacing a product
What to do Touch `Cancel’ Tap and hold a product for around 2 seconds and configure the settings
Tap and hold a product for around 2 seconds and then tap `Replace’
E If the screensaver is active, touch the display to return to the start screen.
E Coffee tastes best served hot. A cold porcelain cup cools the beverage and impairs the taste. We therefore recommend prewarming the cups. You can purchase a JURA Cup Warmer from your specialized dealer.
Preparation with preselection (Aroma Selection and Specialty Selection)
With the Aroma Selection function ~ on your J8 twin, you can change the coffee strength of any given product before preparing it. You can also choose which bean container is used to prepare a coffee and select additional settings:
Specialty Selection e Double product (espresso, coffee) `S’ `Sweet milk foam’ (all specialty coffees with milk) s `Extra Shot’ (all specialty coffees with milk except macchiato and cortado)
£ Ground coffee (all specialty coffees except for espresso doppio)
Meaning The product is prepared with two brewing operations (two strokes).
Use the syrup attachment provided to prepare the product with sweet milk foam. The product is prepared with two brewing operations, with half the amount of water for a specialty coffee with a particularly intense taste. The product is prepared with ground coffee.
E Not all settings are available for all products.
Example: Cappuccino with higher coffee strength
Precondition: Milk is connected to the professional fine foam
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frother.
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4 Preparation
Espresso and coffee
T Place a cup under the professional fine foam frother. T Tap the `Aroma Selection’ symbol ~ (bottom center). T Tap `Cappuccino’ (within 10 seconds). T Tap the setting control for the appropriate grinder (circle) to
increase the coffee strength.
E You can also select which grinder should be used (100% / 50% / 0%).
T Touch `Next’. `Easy Mode’ appears. In this mode, you can configure additional settings.
T Tap the picture of the cappuccino (or `Start’). Preparation starts. The cappuccino is prepared according to your chosen settings.
Example: Coffee
T Place a cup under the coffee spout. T Tap `Coffee’.
The preset amount of water for coffee flows into the cup.
Sweet Latte (prepared with syrup attachment)
The Sweet Latte is a specialty coffee with sweet milk foam. To make this specialty, use the syrup attachment provided.
E All specialties with milk can also be prepared with sweet milk foam. To do this, use the syrup attachment provided and before starting preparation, select the Specialty Selection `S’.
Precondition: Milk is connected to the professional fine foam frother. T Remove the cover from the syrup attachment. T Fill the syrup attachment with syrup. Fill it to the first, second or
third mark depending on the desired sweetness. T Close the syrup attachment. T Tap `Sweet Latte’.
`Please remove the fine foam frother and connect the syrup attachment.’
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4 Preparation
T Remove the lower part of the professional fine foam frother.
T Connect the syrup attachment to the professional fine foam frother.
T Turn the setting wheel of the professional fine foam frother to the `Milk Foam’ position.
T Place a cup under the professional fine foam frother. T Touch `Next’.
The preset amounts of coffee and milk foam flow into the cup. `Please remove the syrup attachment for cleaning and connect the fine foam frother.’ T Remove the syrup attachment and rinse it thoroughly under running water.
E The syrup attachment, including the cover, is dishwasher-safe.
T Re-attach the lower part of the professional fine foam frother. T Touch `Next’.
E 8 minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the professional fine foam frother after preparing milk.
To ensure that the professional fine foam frother always works properly, you must clean it daily when you have been preparing milk (see chapter 7 `Maintenance Cleaning the milk system’).
Latte macchiato, cappuccino Your J8 twin prepares the following specialty coffees with milk at the
and other specialty coffees touch of a button:
with milk
U Cortado
U Cappuccino
U Café au lait
U Macchiato
U Flat White
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U Latte macchiato
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4 Preparation
Americano and lungo Milk and milk foam Espresso doppio
Example: Latte macchiato Precondition: Milk is connected to the professional fine foam frother. T Place a glass under the professional fine foam frother. T Tap `Latte macchiato’.
The preset amounts of milk and milk foam flow into the glass.
E There is a short interval while the hot milk separates from the milk foam. This allows the typical layers of a latte macchiato to form.
The preset amount of water for espresso flows into the glass.
E 8 minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the professional professional fine foam frother after preparing milk.
To ensure that the professional fine foam frother always works properly, you must clean it daily when you have been preparing milk (see chapter 7 `Maintenance Cleaning the milk system’).
For the americano and lungo, the J8 twin blends the coffee with hot water using a special preparation method. This results in a fullbodied specialty coffee which is particularly easy to digest. You can change the amount of this additional water (see chapter 4 `Preparation Adjusting the product settings’).
Your J8 twin prepares hot milk and milk foam. To do this, turn the setting wheel of the professional fine foam frother to the `Milk Foam’ or `Milk’ position.
E 8 minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the professional fine foam frother after preparing milk.
`Doppio’ is Italian for `double’. When you select Espresso doppio, two espressi are prepared one after the other. The result is an extra full-bodied and aromatic specialty coffee.
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Ground coffee
4 Preparation
You can choose to use a second coffee variety, for example decaffeinated coffee, with the filter funnel for ground coffee.
U Never add more than two level measuring spoons of ground
coffee.
U Use ground coffee which is not ground too finely. Very fine
coffee can block up the system so that the coffee only comes out in drips.
U If you did not fill the machine with a sufficient amount of
ground coffee, `Not enough ground coffee’ is displayed and the J8 twin stops the operation.
U The desired specialty coffee must be prepared within
approximately one minute after filling with the ground coffee. Otherwise the J8 twin stops the operation and is once more ready for use.
Example: Proceed as follows to prepare an espresso using ground coffee. T Place an espresso cup under the coffee spout. T Tap the `Aroma Selection’ symbol ~ (bottom center). T Tap `Espresso’. T Touch £. T Touch `Next’. T Touch `Start’.
`Please add ground coffee’ T Open the powder chute cover. T Place the filler funnel for ground coffee on the powder chute. T Add the desired amount of ground coffee to the filler funnel
(max. 2 level measuring spoons).
E The amount of ground coffee determines the intensity and aroma of the beverage, so you can adjust it to your personal preferences.
T Remove the filler funnel. T Close the cover. T Touch `Next’.
The preset amount of water for espresso flows into the cup.
E The powder chute and cover can be removed and also cleaned, if necessary.
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4 Preparation
Hot water
The J8 twin allows you to prepare different variants of hot water:
U `Hot water’ U `Hot water for green tea’ (Product must be added to the start
screen. To do this, tap and hold any product for 2 seconds, then use the `Replace product’ function to select hot water for green tea.)
J CAUTION There is a danger of scalding from hot water splashes. T Avoid direct contact with the skin.
Example: Hot water T Place a cup under the hot-water spout. T Tap `Hot water’.
The preset amount of water flows into the cup.
Adjusting the grinder
The grinder adjustment switches are used to adjust both grinders according to your preference for a mild or intense aroma.
Adjusting the product settings
Touch a product for approximately 2 seconds to access the settings:
U Save permanent settings for preferred coffee strength and
quantity, change the product name or preselect options such as `Sweet milk foam’, `Extra Shot’ or `Ground coffee’.
U The `Replace’ symbol allows you to choose between `Replace
product’ and `Reposition the product’.
E Depending on the selected product, there will be different settings available which are represented by symbols on your display.
The settings always follow the same model.
Example: Proceed as follows to change the quantity for one coffee. T Touch `Coffee’ for approximately 2 seconds. T Tap the symbol for fill volume §. T Tap 9 or 0 to change the setting. T Tap and confirm the setting by selecting `Yes’.
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5 Daily operation
5 Daily operation
Switching the machine on and off
T Place one receptacle under the coffee spout and another under the professional fine foam frother.
T Press the On/Off button Q. `Machine is rinsing’ Your J8 twin is switched on or off.
E When the machine is switched off, the system is only rinsed if a specialty coffee has been prepared.
E If milk has been prepared before switching off, you will be prompted to carry out milk system cleaning (`Clean the milk system’). After 30 seconds the switch-off process continues automatically.
Filling the water tank
Daily maintenance of the machine and hygiene when handling milk, coffee and water are key to a perfect coffee result in the cup every time. You should therefore change the water daily.
NOTICE
Milk, sparkling mineral water or other liquids can damage the water tank or the machine. T Only fill the water tank with fresh, cold water.
T Remove the water tank and rinse it with cold water. T Fill the water tank with fresh, cold water and reinsert the tank.
Maintenance actions
Optimal coffee quality depends on many factors. One important prerequisite is regular maintenance of your J8 twin. Carry out the following steps:
Maintenance action
Daily If necessary Note
Empty the drip tray and coffee
Z
Always empty the coffee grounds
grounds container and rinse with
container when the machine is
warm water
switched on. This is the only way of
(The insert for the drip tray,
resetting the coffee grounds counter.
including the drip tray itself, and
the coffee grounds container are
dishwasher-safe)
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5 Daily operation
Maintenance action Clean the milk system (if heavily soiled, also dismantle and rinse it)
Rinse the milk pipe Rinse the water tank Wipe the surface of the machine with a clean, soft, damp cloth (e.g. microfiber cloth) Remove and clean the powder chute for ground coffee Changing milk pipe with connector HP3 Change the interchangeable milk spout CX3 Clean the inside of the water tank with a brush Clean the top and bottom of the cup platform Thoroughly clean the drip tray and coffee grounds container
Daily
Z
Z Z Z
If necessary
Z
approx. every 3 months approx. every 3 months
Z Z Z
Note See chapter 7 `Maintenance Cleaning the milk system’. We recommend that you dismantle and rinse the professional fine foam frother once a week (see chapter 7 `Maintenance Dismantling and rinsing the professional fine foam frother’)
In the `Maintenance’ area c of the Cockpit, the message `Maintenance information’ appears.
E Perform a self-diagnosis on a regular basis to check the maintenance status of your J8 twin. To do this, touch in the Cockpit.
E You will find more information about the maintenance of your J8 twin in the `Maintenance’ area c in the program item `Maintenance information’.
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6 Machine settings
6 Machine settings
Tap on the start screen to open the Cockpit. In the `Machine settings’ section f the following settings can be configured:
Program item Page ö ä ä `Choose language’ `Water hardness’ `Connections’ (only displayed if JURA Wi-Fi Connect is being used) Page ä ö ä `Display’
`Counter’
`General’
Sub-item
`Wi-Fi connection’ `Connect accessory’
`Set profile’ `Product name’ `Grinder name’ `Brightness’ `Product counter’ `Maintenance counter’ `Information’ `Empty system’ `Factory setting’
Explanation
Set language Set the hardness of the water used (1 °dH to 30 °dH) to prevent limescale building up in your machine Wirelessly connect the J8 twin to the JURA app (J.O.E.®) or disconnect again Establish a wireless connection between your J8 twin and the Cool Control milk cooler or disconnect it again
Create (04) profiles in the Cockpit and personalize 3 favorite specialty coffees for each profile Display product images with/without product names on the start screen Change the names of the grinders, e.g. to specify the beans that are used in each Change display brightness (in 10% increments) View product counter View the maintenance counter
View software version Empty the system to protect the J8 twin from frost damage during transport Reset your J8 twin to factory settings (the machine then switches off)
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6 Machine settings
Program item Page ä ä ö `Timer’
`Operating instructions’
`Unit’
Sub-item
Explanation
`Switch off after’
`Coffee Eye’ `Aroma control’ `Sweet Foam function’ `Milk / Milk foam’
Set the automatic switch-off time to save energy (switch-off after 15 minutes, 30 minutes or 1 9 hours after the last action on the machine) Activate/deactivate operating instructions for `Coffee Eye’ automatic cup recognition Show recommended settings for consistency of grind (enabled/disabled) Show instructions for using the syrup attachment and professional fine foam frother Show instructions for using the professional fine foam frother and switching between milk and milk foam Set the unit for the amount of water (ml or oz)
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7 Maintenance
7 Maintenance
J WARNING
Use of maintenance products that are harmful to health and discharge of liquids during maintenance program. Harmful if swallowed. Irritating to eyes and skin. T Keep children AWAY. T Keep children away from the machine while it is performing a
maintenance program. T Avoid contact with skin and eyes. T Avoid generation of dust. Do not inhale dust. T When using do not eat or drink. T Keep maintenance products away from food, drink and
animal food. T Keep container tightly closed and dry. Keep in a cool place.
Rinsing the machine
Basic information about maintenance:
U You can manage the maintenance of your J8 twin in the
`Maintenance’ c area of the Cockpit.
U If a maintenance program needs to be initiated, the
area on
the start screen appears with a red background.
Tap to open the JURA Cockpit. Here, maintenance
programs that need to be carried out are shown in the form
of messages with red backgrounds. Touch a message to go
straight to the corresponding maintenance program.
U Carry out each maintenance program when you are prompted
to do so.
You can start coffee system rinsing manually at any time.
Precondition: The start screen is displayed. T Place one receptacle under the coffee spout and another under
the professional fine foam frother. T Tap at the top to open the JURA Cockpit. T Touch the `Maintenance’ symbol c. T Touch `Rinse’ to start the rinse operation.
`Milk system is being rinsed’ `Machine is rinsing’ The rinse stops automatically.
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7 Maintenance
Automatic milk system rinsing
8 minutes after milk preparation, the milk system is automatically rinsed. Therefore, always place a receptacle under the professional fine foam frother after preparing milk.
Cleaning the milk system J WARNING
To ensure that the milk system always works properly, you must clean it daily when you have been preparing milk.
Non-recommended cleaning agents will not optimally remove milk residues. This may cause the cappuccino frother to become blocked and fly off the machine. Discharge of hot steam. T Use only original JURA milk system cleaner.
J WARNING
Harmful and irritating cleaning agent. Harmful if swallowed. Irritating to eyes and skin. T Keep children AWAY. T Avoid contact with skin and eyes. T After contact with skin, wash immediately with plenty of water.
In case of skin irritation, seek medical advice. T After eye contact, immediately flush eyes with plenty of water
and seek medical advice. T If swallowed, rinse mouth immediately and drink large
quantities of water. Do not induce vomiting. Seek medical advice immediately and show label.
E JURA milk system cleaner is available from specialized dealers.
E Use the container supplied for milk system cleaning.
Precondition: `Clean the milk system’ is displayed in the Cockpit. T Tap at the top to open the JURA Cockpit. T Tap `Clean the milk system’. T Touch `Next’.
`Cleaning agent for milk system’ / `Connect the milk tube ‘ / `Milk Foam position’ / `Attach the spout to the container’ T Remove the milk pipe from the milk container or milk cooler. T Pour one dosing unit of milk system cleaner into the container for milk system cleaning. T Place the container under the coffee spout and the professional fine foam frother.
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7 Maintenance
T Push the professional fine foam frother down as far as it will go to connect it firmly to the container.
T Connect the milk pipe to the container.
E To connect the milk pipe to the container correctly, the pipe must be fitted with a connector HP3.
T Turn the setting wheel of the professional fine foam frother to the `Milk Foam’ position.
T Touch `Start’. The professional fine foam frother and the milk pipe are cleaned. The operation stops automatically.
Dismantling and rinsing the professional fine foam frother
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If insufficient foam is produced when the milk is frothed or milk sprays out of the professional fine foam frother, the frother may be dirty. If this happens, dismantle and rinse the professional fine foam frother. T Remove the milk pipe and rinse it thoroughly under running
water. T Remove the professional fine foam frother.
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T Dismantle the professional fine foam frother into its individual parts.
T Rinse all the parts under running water. If there are severely dried-on milk residues, firstly immerse the individual parts in a solution of 8.5 oz (250 ml) water and one dosing unit of JURA milk system cleaner. Then rinse the individual parts thoroughly. en es fr
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7 Maintenance
T Re-assemble the professional fine foam frother. E Ensure that all individual parts are correctly and firmly connected to ensure optimum operation of the professional fine foam frother.
T Re-fit the professional fine foam frother on the milk system.
Inserting/changing the filter
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Once the filter cartridge stops working (depending on the water hardness setting), the J8 twin will prompt you to change the filter.
E Your J8 twin no longer has to be descaled if you are using the CLEARYL Smart+ filter cartridge.
E CLEARYL Smart+ filter cartridges are available from jura.com and specialized dealers.
Precondition: `Change the filter’ is displayed in the Cockpit if the filter’s capacity has been exhausted. T Remove and empty the water tank. T Turn the filter casing anti-clockwise and remove it from the
water tank. T Open the filter casing. T Remove the old CLEARYL Smart+ filter cartridge.
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T Insert a new CLEARYL Smart+ filter cartridge. T Close the filter casing. T Insert the filter casing into the water tank.
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7 Maintenance
T Turn the filter casing clockwise until it audibly clicks into place. T Fill the water tank with fresh, cold water and reinsert the tank.
The machine automatically detects that you have just inserted/ changed the filter cartridge. `Filter is being rinsed’, water flows directly into the drip tray. `Empty drip tray’ T Empty the drip tray and coffee grounds container and put them back into the machine. The start screen is displayed.
Cleaning the machine J WARNING
After 180 preparations or 80 switch-on rinses, the J8 twin will prompt you to clean it.
Non-recommended (e.g. liquid) cleaning agents may contain substances that could damage the machine or leave residues. T Use only original JURA Cleaning Tablets. These are formulated
especially for your machine.
J WARNING
Harmful and irritating cleaning agent. Harmful if swallowed. Irritating to eyes and skin. T Keep children AWAY. T Avoid contact with skin and eyes. T Avoid generation of dust. Do not inhale dust. T After contact with skin, wash immediately with plenty of water.
In case of skin irritation, seek medical advice. T After eye contact, immediately flush eyes with plenty of water
and seek medical advice. T If swallowed, rinse mouth immediately and drink large
quantities of water. Do not induce vomiting. Seek medical advice immediately and show label.
E The cleaning program lasts approximately 20 minutes. E JURA cleaning tablets are available from specialized dealers.
Precondition: `Clean’ is displayed in the Cockpit.
T Fill the water tank.
T Tap at the top to open the JURA Cockpit.
T Tap `Clean’.
T Touch `Start’.
`Empty coffee grounds container’ / `Empty drip tray’
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T Empty the drip tray and coffee grounds container and put them es back into the machine. fr
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7 Maintenance
T Place one receptacle under the coffee spout and another under the professional fine foam frother.
T Touch `Next’. `Machine is being cleaned’ The operation is interrupted, `Add cleaning tablet’.
T Open the powder chute cover.
T Insert a JURA cleaning tablet into the powder chute. T Close the cover. T Touch `Next’.
`Machine is being cleaned’ `Empty coffee grounds container’ / `Empty drip tray’ T Empty the drip tray and coffee grounds container and put them back into the machine.
Descaling the machine
The J8 twin builds up deposits of limescale over time and automatically prompts you to descale it when necessary. The degree of calcification depends on the hardness of your water.
E If you are using a CLEARYL Smart+ filter cartridge, you will not be prompted to descale.
J WARNING J WARNING
Non-recommended descaling agents (e.g. vinegar) may contain substances that could damage the machine or leave residues. T Use only original JURA Descaling Tablets. These are formulated
especially for your machine.
Harmful and irritating descaling agent. Harmful if swallowed. Irritating to eyes and skin. T Keep children AWAY. T Avoid contact with skin and eyes. T Avoid generation of dust. Do not inhale dust. T After contact with skin, wash immediately with plenty of water.
In case of skin irritation, seek medical advice. T After eye contact, immediately flush eyes with plenty of water.
Remove contact lenses. Seek medical advice. T If swallowed, rinse mouth immediately and drink large
quantities of water. Do not induce vomiting. Seek medical advice immediately and show label.
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7 Maintenance
NOTICE
If the descaling operation is interrupted, there may be damage to the machine. T Allow the descaling program to run to the end.
E The descaling program lasts approximately 20 minutes. E JURA descaling tablets are available from specialized dealers. E If the descaling agent comes into contact with sensitive
surfaces (e.g. marble), damage cannot be ruled out. Clean up any splashes immediately.
Precondition: `Descale’ is displayed in the Cockpit. T Tap at the top to open the JURA Cockpit. T Tap `Descale’. T Touch `Start’.
`Empty drip tray’ T Empty the drip tray and coffee grounds container and put them
back into the machine. `Pour descaling agent into water tank’ T Remove and empty the water tank. T Completely dissolve 3 JURA Descaling Tablets in a receptacle holding 17 oz (500 ml) of water. This may take several minutes. T Pour the solution into the empty water tank and insert it into the machine.
3x
T Place one receptacle under the hot-water spout and another under the professional fine foam frother.
T Touch `Next’. `Machine is being descaled’, water flows repeatedly out of the hot-water spout and professional fine foam frother straight into the drip tray. `Empty drip tray’
T Empty the drip tray and coffee grounds container and put them back into the machine. `Rinse the water tank’ / `Fill water tank’
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7 Maintenance
T Empty the receptacles and place them back under the hot-water spout and the professional fine foam frother.
T Remove the water tank and rinse it thoroughly. T Fill the water tank with fresh, cold water and reinsert the tank. T Touch `Next’.
Water flows repeatedly out of the hot-water spout and professional fine foam frother straight into the drip tray. `Empty drip tray’ T Empty the drip tray and coffee grounds container and put them back into the machine.
E If the descaling operation stops unexpectedly, rinse the water tank thoroughly.
Descaling the water tank
Limescale deposits may form in the water tank. To ensure correct function of the machine, descale the water tank from time to time. T Remove the water tank. T If you use a CLEARYL Smart+ filter cartridge, remove this. T Completely fill the water tank and dissolve 3 JURA Descaling
Tablets in it. T Leave the water tank with the descaling solution for several
hours (e.g. overnight). T Empty the water tank and rinse it thoroughly. T If you use a CLEARYL Smart+ filter cartridge, insert this again. T Fill the water tank with fresh, cold water and reinsert the tank.
Cleaning the bean container
Coffee beans may be covered with a slight oil film which remains on the walls of the bean container. These traces may negatively affect the coffee result. For this reason clean the bean container from time to time.
Precondition: `Fill bean container’ is displayed. T Switch the machine off with the On/Off button Q. T Remove the aroma preservation cover. T Clean the bean container with a soft, dry cloth. T Fill the bean container with coffee beans and close the aroma
preservation cover.
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8 Display messages
8 Display messages
Messages on the start screen
Message `Fill water tank’
`Empty coffee grounds container’ / `Empty drip tray’
`Drip tray not fitted’
`Fill left bean container’ / `Fill right bean container’
`Not enough ground coffee’
Cause/Result The water tank is empty. You cannot prepare any products.
The coffee grounds container is full. / The drip tray is full. You cannot prepare any products.
The drip tray is not inserted correctly or is not inserted at all. You cannot prepare any products. One of the bean containers is empty. You cannot prepare any specialty coffees for which coffee beans are required from this bean container. You can prepare hot water or milk. There is insufficient ground coffee in the machine; the J8 twin stops the operation.
Action T Fill the water tank (see chapter 5 `Daily operation Filling the water tank’). T Empty the coffee grounds container and the drip tray (see chapter 5 `Daily operation Maintenance actions’). T Fit the drip tray.
T Fill the bean container (see chapter 3 `Preparing and using for the first time Filling the bean container’).
T The next time you prepare a beverage, add more ground coffee (see chapter 4 `Preparation Ground coffee’).
Messages in the Cockpit
Message The filter symbol $ lights up red. `Change the filter’ `Clean’
`Descale’
`Clean the milk system’
Cause/Result The filter cartridge no longer works.
The J8 twin is prompting you to clean it. The J8 twin is prompting you to descale it. The J8 twin prompts you to clean the milk system.
Action T Replace the CLEARYL Smart+ filter cartridge (see chapter 7 `Maintenance Inserting/ changing the filter’).
T Perform cleaning (see chapter 7 `Maintenance Cleaning the machine’). T Perform descaling (see chapter 7 `Maintenance Descaling the machine’). T Perform milk system cleaning (see chapter 7 `Maintenance Cleaning the milk system’).
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9 Troubleshooting
9 Troubleshooting
Problem Insufficient foam is produced when the milk is frothed or milk sprays out of the professional fine foam frother.
The `Coffee Eye’ reports a cup under the coffee spout even though no cup has been placed there. Coffee only comes out in drips when it is being prepared.
There is dry ground coffee behind the coffee grounds container.
`Fill water tank’ is not displayed although the water tank is empty. Grinder is making a very loud noise.
`ERROR 2′ or `ERROR 5′ is displayed.
Other `ERROR’ messages are displayed.
Cause/Result The professional fine foam frother is dirty.
The cup detection sensor behind the coffee spout is dirty.
The coffee is ground too finely and obstructs the system. The water hardness may not have been correctly set. The beans used are resulting in an aboveaverage volume of ground coffee. There is a lot of limescale in the water tank.
There are foreign objects in the grinder.
If the machine has been exposed to the cold for a long period of time, heating may be disabled for safety reasons.
Action T Clean the professional fine foam frother (see chapter 7 `Maintenance Cleaning the milk system’). T Dismantle and rinse the fine foam frother (see chapter 7 `Maintenance Dismantling and rinsing the professional fine foam frother’). T Clean the sensor with a damp cloth.
T Put the grinder on a coarser setting or use coarser ground coffee.
T Perform descaling (see chapter 7 `Maintenance Descaling the machine’). T Reduce the coffee strength or choose a finer grinder setting (see chapter 4 `Preparation Adjusting the product settings’). T Descale the water tank (see chapter 7 `Maintenance Descaling the water tank’). T Contact customer support in your country (see chapter 13 `JURA contact details / Legal information’). T Warm the machine at room temperature.
T Switch the J8 twin off with the On/Off button Q. Contact customer support in your country (see chapter 13 `JURA contact details / Legal information’).
E If you were unable to solve the problem, contact customer support in your country (see chapter 13 `JURA contact details / Legal information’).
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10 Transport and environmentally friendly disposal
10 Transport and environmentally friendly disposal
Transport / Emptying the system
Disposal
Keep the packaging for your J8 twin. It should be used to protect the machine during transport.
In order to protect the J8 twin from frost during transport, the system must be emptied.
Precondition: The start screen is displayed. T Remove the milk pipe from the professional fine foam frother. T Place one receptacle under the hot-water spout and another
under the professional fine foam frother. T Tap at the top to open the JURA Cockpit. T Touch the `Machine setting’ f symbol. T Tap 0 to call up ä ö ä. T Tap `General’. T Tap `Empty system’. T Touch `Next’.
`Remove the water tank’ T Remove and empty the water tank. T Touch `Start’.
Steam will continue to be discharged from the professional fine foam frother and the hot-water spout until the system is empty. Your J8 twin is switched off.
Please dispose of old machines in an environmentally neutral way.
H
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11 Technical data
11 Technical data
Voltage Power Conformity mark
120 V ~, 60 Hz 1450 W
Pump pressure Holding capacity of water tank (without filter) Holding capacity of bean container Holding capacity of coffee grounds container Cord length Weight Dimensions (W × H × D) Milk system with connector Interchangeable milk spout CLEARYL filter cartridge Smart+ (RFID technology) JURA Wi-Fi Connect (Wi-Fi connection)
JURA type
static, max. 15 bar 64 oz (1.9 l) 2 × 6.4 oz (180 g) max. 16 portions approx. 47 in. (1.2 m) 25.4 lb (11.5 kg) 12.2 × 14.2 × 17.6 in. (31 × 36.1 × 44.6 cm) HP3 CX3 Frequency band 13.56 MHz Max. transmission power < 1 mW Frequency band 2.4 GHz Max. transmission power < 100 mW 769
Directives
The machine complies with the following directives:
U Standard UL 1082 U Canadian Standard CSA C22.2 No. 64
FCC Rules This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules.
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12 Index
12 Index
A Addresses 40 Adjusting the product settings 20 Americano 18 Aroma preservation cover
Bean container with aroma preservation
cover 9 Aroma Selection 15
B Bean container
Bean container with aroma preservation
cover 9
Cleaning 32
Filling 10 Bus bar
Technical data 36 Button
On/Off button 9
C Caffè latte 17 Cappuccino 17 Cleaning
Bean container 32
Machine 29 CLEARYL Smart+ filter cartridge
Changing 28
Inserting 28 Cockpit 13, 23, 25 Coffee 16 Coffee grounds container 9 Coffee spout 9 Connecting an accessory 14 Consistency of grind
Adjusting the grinder 20
Grinder adjustment switch 9 Contact details 40 Cup platform 9 Customer support 40
D Descaling
Machine 30
Water tank 32 Display
Cockpit 13
Touch display 9 Display messages 33
Disposal 35 Drip tray 9
Insert 9 E
Emptying the system 35 Errors
Troubleshooting 34 Espresso 16 Espresso doppio 18 F Filler funnel
Filler funnel for ground coffee 9 Filling
Bean container 10 Water tank 21 Filter Changing 28 Inserting 28 Filter casing 9 Fine foam frother Professional fine foam frother 9 First-time use 11 Flat white 17 G Grinder adjustment switch 9 Ground coffee 19 Measuring spoon for ground coffee 9 Powder chute for ground coffee 9 H Hotline 40 Hot water 20 Hot-water spout 9 I Important safeguards Safety 4 Insert for drip tray 9 Instant coffee Ground coffee 19 Interchangeable milk spout 36 J JURA Contact details 40 L Latte macchiato 17 Lungo 18
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12 Index
M Macchiato 17 Machine Cleaning 29 Descaling 30 Rinsing 25 Setting up 10 Machine settings 23 Maintenance 25 Maintenance actions 21 Measuring spoon for ground coffee 9 Messages, display 33 Milk 18 Connecting milk 13 Milk foam 18 Milk system 36 Clean 26 Professional fine foam frother 9 Syrup attachment 9, 16 Milk system rinsing 26
P Powder chute Powder chute for ground coffee 9 Power cord 9 Preparation 14, 17 Americano 18 Aroma Selection 15 Caffè latte 17 Cappuccino 17 Coffee 16 Espresso 16 Espresso doppio 18 Flat white 17 Ground coffee 19 Hot water 20 Latte macchiato 17 Lungo 18 Macchiato 17 Milk 18 Milk foam 18 Speciality Selection 15 Sweet Latte 16 Problems Troubleshooting 34 Product settings Adjusting 20 Professional fine foam frother 9 Dismantling and rinsing 27
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R RFID 36 Rinsing
Machine 25
S Safety
Important safeguards 4 Service socket 9 Setting up
Setting up the machine 10 Specialty Selection 15 Spout
Hot-water spout 9 Sweet Latte 16 Switching off 21 Switching on 21 Syrup attachment 9, 16
T Tank
Water tank 9 Technical data 36
Interchangeable milk spout 36
Milk system 36 Tel 40 Touchscreen display 9 Transport 35 Troubleshooting 34
U Use, First-time 11
W Water hardness
Determining the water hardness 10 Water tank 9
Descaling 32
Filling 21 Wi-Fi 36 Wi-Fi Connect 9, 14 Wi-Fi connection 14 Wireless connection 14, 28, 36
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J75738/J8 twin(NAA)/US-en-es-fr/202401
13 JURA contact details / Legal information
13 JURA contact details / Legal information
Customer Service Phone E-Mail Opening Hours (EST)
Distributor Address
Phone Fax Internet
JURA Elektroapparate AG Kaffeeweltstrasse 10 CH-4626 Niederbuchsiten Switzerland
USA: JURA Inc.
1-800-220-5701 info@us.jura.com Mon Fri 8 am 8 pm, Sat 9 am 5 pm 20 Craig Road Montvale, NJ 07645 001 201-767-3999 001 201-767-9684
us.jura.com
Canada: FAEMA
1-(855)-544-8600 info@juracanada.ca
115 Matheson Boulevard East Mississauga, Ontario, L4Z 1X8 1-(905)-501-8600
ca.jura.com
@ You will find additional contact details for your country at jura.com.
Technical changes
We reserve the right to make technical changes. The diagrams used in these instructions for use are for illustration purposes only and do not represent the original colors of the machine. Some details of your J8 twin may vary.
Feedback Your opinion is important to us! Use the contact details at jura.com.
Copyright
The instructions for use contain information which is protected by copyright. It is not permitted to photocopy these instructions for use or translate them into another language without the prior written consent of JURA Elektroapparate AG.
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Documents / Resources
 |
jura J8 Twin Superautomatic Espresso Machine [pdf] Instruction Manual J8 twin NAA, J8 Twin Superautomatic Espresso Machine, J8 Twin, Superautomatic Espresso Machine, Espresso Machine, Machine |