GASTROBACK Design Espresso Advanced Duo

Important Information - Please Read Carefully Before Use

All GASTROBACK® products are intended for food processing. For health protection and hygiene reasons, products used daily or only once cannot be returned. Examine goods as you would in a retail store. You are only liable for loss in value if it results from handling not necessary for examination of the goods' nature, characteristics, and function. Processing food into meals and drinks is considered unnecessary handling.

For questions about GASTROBACK® products, if your unit is not working properly, or if you need accessories or spare parts, please contact our customer service before returning.

GASTROBACK® Customer Service Hotline:
Tel: +49 (0) 4165 – 22 25 0
E-Mail: info@gastroback.de

Safety Warnings

We place great importance on your safety. Please read all instructions and information provided with the appliance carefully and completely before operating it. This will help you understand all functions and properties of your new appliance. Adhere strictly to the safety information mentioned in these instructions.

General Safety Instructions

• Remove all packaging materials. Warning: Suffocation hazard! Packaging materials are not toys. Keep them away from children.
• Always switch off the appliance and disconnect it from the power supply before replacing attachments, cleaning, or when the appliance is not in use.
• Protect the appliance and its electrical parts from moisture. Do not immerse the appliance or its electrical parts in water or other liquids to avoid electric shock. Never hold the appliance under running water. Follow cleaning and care instructions.
• Do not operate the appliance with wet hands or while standing on a wet floor. Do not touch the power plug with wet hands.
• Warning: Hot Surface! Surfaces can get hot during use. Avoid touching metal surfaces of the portafilter or steam wand. Only touch the steam wand by its silicone sleeve.
• Warning: Danger of Injury! Be careful to avoid injury from sharp parts.
• Warning: Danger of Injury! Avoid contact with moving parts. Wait until all components have completely stopped before touching them.
• This appliance is classified as protection class I and must be connected to a protective ground.
• Use only in dry indoor rooms.
• This appliance shall not be used by children. Keep the appliance and its cord out of reach of children.
• Children shall not play with the appliance.
• Persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, can use this appliance if they are supervised or instructed on its safe use and understand the associated hazards.
• Regularly check the power plug and cord for damage. If the supply cord is damaged, it must be replaced by the manufacturer, service agent, or similarly qualified persons to avoid a hazard.
• This appliance is intended for household and similar applications (e.g., staff kitchens, farm houses, hotels, B&Bs).
• Warning: Avoid spillage on the connector.
• Refer to the "After Use" chapter for cleaning surfaces in contact with food.
• Refer to the "Operation" chapter for information on operating times for accessories.
• Warning: Misuse may lead to injury. Use this appliance solely as described. Do not modify it. Be careful when handling sharp parts, emptying the bean hopper, and cleaning.
• Warning: The heating element surface retains residual heat after use.
• Always disconnect the appliance from the supply if left unattended and before assembly, disassembly, or cleaning.
• Switch off and disconnect from supply before changing accessories or approaching moving parts.
• Danger of Electric Shock! Do not attempt to repair the appliance yourself. Repairs must be conducted by qualified personnel only.
• Do not pull the power plug out by the cord. Do not wrap the power cord around the appliance.
• Never use accessories not recommended by the manufacturer, as they may pose a safety risk or damage the appliance. Only use original parts and accessories.
• Connect the mains plug to an easily accessible socket for quick disconnection in an emergency.
• If using extension cords or multi-socket units, ensure they have appropriate power ratings.
• Always turn off the appliance before disconnecting the power plug.
• Always place and operate the appliance on an even, stable, heat-resistant, and dry surface.
• Warning: The appliance shall not be placed in a cabinet when in use.
• Never fill the water tank with warm or hot water or other liquids like milk. Use only cold drinking water.
• Risk of Scalding! Do not open the water tank cover or remove the water tank or portafilter while the appliance is operating.
• Ensure sufficient space around the appliance and prevent contact with flammable material. Do not cover the appliance.
• Risk of Scalding! Do not overfill the appliance.
• Do not operate the appliance without water in the tank. Ensure the water level is between MIN and MAX markings.
• Beware of escaping hot steam during operation.
• Risk of Injury! Ensure the portafilter is turned and locked correctly before operation, otherwise it may be expelled by steam pressure.
• Do not leave the appliance unattended during operation.

Electrical Safety

• Ensure the rated voltage on the label matches your power supply.
• Do not operate with a damaged power cord or plug, or if the appliance malfunctions or is damaged.
• Protect the power cord from damage. Do not let it hang over sharp edges, squeeze, or bend it. Keep it away from hot surfaces and ensure no one can trip over it.
• Never open the housing. Do not insert fingers or foreign objects into openings, and do not obstruct air vents.
• Protect the appliance against heat. Do not place near open flames or heat sources like stoves or heating appliances.

The Appliance

The appliance is designed for preparing and grinding coffee, boiling water, and frothing milk. It is intended for private, indoor use only. Use only as described in this manual. Any other use may cause damage or injury. No liability is accepted for damage from improper use or non-compliance.

Appliance Components:

• 1. Bean hopper lid
• 2. Bean hopper
• 3. Grinding wheel
• 4. Cup warming plate
• 5. Water tank lid
• 6. Water tank
• 7. Control knob
• 8. Coffee/Hot water outlet
• 9. Power cord with power plug
• 10. Milk jug
• 11. Steam wand
• 12. Tamper
• 13. Brewing head
• 14. Coffee powder outlet
• 15. Drip tray
• 16. Floater
• 17. Drip plate
• 18. Portafilter
• 19. Single-Wall Filter (1 Cup) / Dual-Wall Filter (1 Cup)
• 20. Single-Wall Filter (2 Cups) / Dual-Wall Filter (2 Cups)
• 21. Cleaning pin
• 22. Cleaning brush
• 23. Accessory box
• 24. Clean/Descale indicator
• 25. Grinding button (Double cup)
• 26. Grinding button (Single cup)
• 27. Power button
• 28. Program button
• 29. Double cup button
• 30. Single cup button
• 31. Steam/hot water indicator
• 32. Pressure gauge

Before First Use

Carry out the "Preparing coffee" and "Boiling water" steps with fresh water up to the MAX marking, without coffee powder. Discard the water. Clean the appliance and accessories afterwards (see "After Use").

Note: Some noise may occur when the appliance pumps water for the first time; this is normal.

Operation

Selecting the Appropriate Filter Basket

The appliance comes with filter baskets for different purposes. Select the appropriate basket for optimal results. The provided filter baskets are suited for various combinations of coffee powder amount, grind size, tamping pressure, and extraction volume. Adjust these parameters step-by-step.

• Dual Wall Filters – ideal for beginners: These filters simplify espresso preparation for quick, easy results. They slow down water flow for optimal pressure and a rich crema. Suitable for pre-ground or freshly ground beans.
• Single Wall Filters – for aspiring coffee enthusiasts: These filters allow manual adjustment of grind size, amount, and tamping pressure. They do not influence water flow, requiring fine-tuning for best results.

Note: You can program extraction volumes (see "Entering Your Own Settings").

Note: Values mentioned (e.g., coffee amount) refer to factory preset values and are adjustable via the programming function.

Preparing Coffee

1. Fill the water tank.
2. Ensure the control knob is in the standby position (•).
3. Connect the appliance to power and press the power button. The appliance preheats; the power indicator flashes, and grinding indicators light up.
4. Once preheated, the appliance enters standby mode; all button indicators light up.
5. Insert the single or double cup filter into the portafilter based on your desired cup amount.
6. Fill the filter with an appropriate amount of coffee powder (Single cup: approx. 13g / Double cup: approx. 19g). OR If using the integrated grinder: Connect the grinding wheel clockwise to the grinder mechanism. Place the bean hopper on top, aligning pins, press down, and turn clockwise to lock. Fill the bean hopper with beans and set the coarseness (0=fine, 30=coarse). Insert the portafilter into the left bracket. Press the desired grinding button (Single cup: approx. 13g / Double cup: approx. 19g). The appliance grinds the coffee. Press the button again to stop manually. Remove the portafilter. Tamp the coffee powder in the filter using the tamper until its edge aligns with the portafilter edge.
7. Insert the portafilter into the right bracket and turn counterclockwise to lock it.
8. Place a cup/two cups on the drip plate and press the single cup/double cup button (Single cup: approx. 30ml / Double cup: approx. 60ml) to start brewing. The corresponding indicator flashes.
9. The appliance returns to standby mode automatically after brewing.

Hot Water Function

1. Follow steps 1-4 in "Preparing Coffee".
2. Place a cup under the coffee/hot water outlet, ensuring it can hold up to 280ml.
3. Turn the control knob to the hot water position. The coffee/hot water outlet dispenses hot water (max. 280ml). The steam/hot water indicator flashes, and the program indicator turns off.
4. Turn the control knob back to the standby position (•) after dispensing, or to stop the flow. The appliance returns to standby mode.

Steam Function

1. Follow steps 1-4 in "Preparing Coffee".
2. Turn the control knob to the steam position. The steam wand releases steam; the steam/hot water indicator flashes, and the program indicator turns off.
3. For best results, release steam for 3-5 seconds, turn the knob to the steam position, insert the wand into milk, and turn the knob back to the steam position to froth.
4. Turn the control knob to the standby position (•) to stop steaming. The appliance returns to standby mode.

Programming Function

Note: Resetting to factory settings clears the current cleaning/descaling cycle, but the indicator remains functional. The appliance tracks water usage; the indicator activates after approx. 15 liters. Resetting individual programs does not affect the cleaning/descaling indicator.

Adjusting Grinding Time

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the grinding button (single or double cup). After approx. 3 seconds, the program indicator and the selected grinding indicator flash. The appliance starts grinding.
3. Release the button when the desired amount of ground coffee is reached. An acoustic signal sounds, and the appliance returns to standby mode.
4. The set grinding time is saved for future use.

Note: Programmable grinding time is 6-13 seconds for single cup and 10-18 seconds for double cup.

Reset Grinding Time to Factory Setting

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the program button and the grinding button (single or double cup).
3. Release all buttons when their indicators flash twice and an acoustic signal sounds. The appliance returns to standby mode.

Adjusting Amount of Brewed Coffee

Note: Adjustable amount is 20-125ml for single cup and 20-250ml for double cup.

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the single or double cup button. After approx. 3 seconds, the program indicator and the selected cup indicator flash. The appliance starts dispensing coffee.
3. Release the button when the desired amount is reached. An acoustic signal sounds, and the appliance returns to standby mode.
4. The set amount is saved for future use.

Reset Amount of Brewed Coffee to Factory Setting

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the program button and the single or double cup button.
3. Release all buttons when their indicators flash twice and an acoustic signal sounds. The appliance returns to standby mode.

Adjusting Coffee Extraction Temperature

Note: Default temperature is 92°C. Higher temperatures increase bitterness and decrease acidity. Lower temperatures decrease bitterness and increase acidity.

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the program button for approx. 3 seconds. The program indicator flashes, and an acoustic signal sounds.

Note: If no operation occurs for one minute, the appliance returns to standby. You can also exit by holding the program button for approx. 1 second.

3. Press the single cup button twice for 88°C. The single and double cup indicators light up, others turn off. OR
4. Press the grinding button (single cup) for 90°C. The single cup grinding indicator lights up, others turn off. OR
5. Press the grinding button (double cup) for 92°C. The double cup grinding indicator lights up, others turn off. OR
6. Press the single cup button for 94°C. The single cup indicator lights up, others turn off. OR
7. Press the double cup button for 96°C. The double cup indicator lights up, others turn off.

4. Press and hold the program button for approx. 1 second. An acoustic signal sounds, and the appliance returns to standby mode.

Complete Factory Reset

1. Follow steps 1-4 in "Preparing Coffee".
2. Press and hold the power button and the program button until all indicators flash twice and an acoustic signal sounds. The appliance returns to standby mode.
3. All buttons are now reset to default factory settings.

Notes:

• If coffee powder is too fine or water level is low, all indicators flash and an acoustic signal sounds. If no operation occurs for one minute, the appliance returns to standby.
• Grinding function: Max 3 minutes continuous use. Grinding indicators flash alternately, and an acoustic signal sounds. Allow the grinder to cool for at least 6 minutes.
• Steam function: Max 5 minutes use.
• The appliance turns off automatically after approx. 10 minutes in standby mode.

After Use

Cleaning

Note: Clean the appliance regularly for safe, hygienic operation and to maintain coffee taste.

• Before cleaning, unplug and let the appliance cool completely. Empty the water tank and portafilter if necessary.
• Do not use steel wool, strong chemicals, alkali, abrasive, or disinfecting agents, as they may damage the surface.
• Do not immerse the appliance in water or other liquids. Ensure electrical parts do not get wet.
• Clean the appliance body with a soft damp cloth, then dry with a dry soft cloth.
• Clean all detachable parts (except the detachable grinding wheel) in warm, soapy water. Rinse with clear water and dry with a dry soft cloth.
• Use the rear end of the cleaning brush to detach the filter from the portafilter.
• Use the cleaning pin for hard-to-reach areas on the steam wand and filters (thicker end for steam wand, thinner end for filters).
• To clean the grinding wheel and mechanism: Remove the bean hopper counterclockwise. Remove the grinding wheel counterclockwise.
• Clean the grinding mechanism parts and wheel with the cleaning brush. Clean the coffee grinder and outlet every two weeks. If coffee powder output decreases or spreads, clean the coffee powder channel, grinding wheel, and outlet. Clean the coffee powder channel more regularly if grinding fine coffee.
• The appliance may only be used again after it is completely dry.

Descaling

Note: Descale every 4-6 months or when the clean/descale indicator lights up. Intervals depend on water hardness and usage frequency (indicator lights up after approx. 15 liters of water used). Use only recommended descaling agents. The cycle takes approx. 10 minutes.

1. Ensure the drip tray is empty and installed with the drip plate.
2. Fill the water tank with 1 liter of water. Add descaling tablets and wait for them to dissolve. OR Add half a cup of liquid descaling agent and 1 liter warm water. OR Add 1.5 tablespoons of white vinegar and 1 liter warm water.
3. Insert the water tank.
4. Place an empty 1-liter container under the coffee/hot water outlet and another under the steam wand.
5. Connect the power plug. Turn the control knob to the descaling position (•).
6. Press and hold the single cup, double cup, and program buttons until their indicators turn off. The power indicator and clean/descale indicator flash, the steam/hot water indicator lights up, and an acoustic signal sounds, indicating the descaling program has started.
7. Set the control knob to the descaling position. The clean/descale indicator lights up solidly, and the steam/hot water indicator flashes. Hot water dispenses from the coffee/hot water outlet and steam wand.
8. When finished, the clean/descale and steam/hot water indicators flash with an acoustic signal. Turn the control knob to standby (•) after water stops. Indicators light up solidly.

IMPORTANT: You have only 5 minutes to complete steps 9-11 before the cycle exits automatically.

9. Clean the water tank, steam wand, and coffee/hot water outlet to remove descaling solution. Empty the 1-liter containers.
10. Fill the water tank with fresh water and insert it.
11. Place empty 1-liter containers under the coffee/hot water outlet and steam wand.
12. Set the control knob to the descaling position. The clean/descale indicator lights up, and the steam/hot water indicator flashes. Hot water dispenses.
13. When water flow stops, descaling is finished. An acoustic signal sounds, and indicators flash.
14. Turn the control knob to standby (•). The appliance returns to standby mode.

Storage

• Before storage, ensure the appliance is completely dry and cooled down.
• Remove the drip tray and accessory box. Store the cleaning pin, brush, and filters in the accessory box. Reinsert the box and drip tray.
• Store the appliance in a cool, dry place, protected from moisture and out of children's reach.
• Preferably store in original packaging.

Troubleshooting

Only perform steps described in this manual. Further inspection, maintenance, or repair must be done by an authorized service center or qualified specialist.

Environmental Protection

This product is designed to meet Commission Regulation (EU) 2023/826 regarding ecodesign.

Notes for Disposal

Dispose of the appliance and packaging according to local regulations for electrical waste and packaging. Contact your local disposal company. Do not dispose of electrical appliances in household waste; use separate collection facilities. Improper disposal can release hazardous substances into the environment, harming health and ecosystems. When replacing an old appliance, the vendor is legally obligated to take it back for disposal free of charge.

Information and Service

For more information, visit www.gastroback.de. For technical support, contact GASTROBACK® Customer Care Center by phone: +49 (0) 4165/2225-0 or e-mail: info@gastroback.de. The manual is also available as a PDF at www.gastroback.de/Kundenservice.

Please refer to our current instructions for repair processing and returns.

Warranty

GASTROBACK® guarantees products are free of defects at purchase. Demonstrable manufacturing or material defects will be repaired or substituted free of charge within 2 years, excluding further claims. Warranty is void if damage is due to improper treatment, overloading, installation mistakes, or unauthorized technical interference. The purchaser must present the original sales receipt and bears transport costs and risks.

Note for Customers in Germany and Austria: For repair and service, send products to: GASTROBACK GmbH, Gewerbestr. 20, D-21279 Hollenstedt, Germany.

Customers in other countries: Please contact your dealer.

Please note that we cannot accept unpaid shipments. For appliance submission: Pack the appliance securely without accessories. Include the sales slip and a brief fault description. Processing takes approx. 2 weeks; you will be informed automatically. For out-of-warranty repairs, send the appliance to the given address for a free quotation. You can then decide whether to proceed with repair, return the appliance unrepaired, or dispose of it.

The appliance is intended for household use only and is NOT suitable for commercial use. Use only as described in these instructions. Any other use is considered misuse and can cause severe injuries or damage. No warranty claim applies if injuries or damages are caused by unintended use.

Diagram Descriptions

The appliance features a bean hopper (2) with a lid (1), a grinding wheel (3), a cup warming plate (4), a water tank (6) with a lid (5), a control knob (7), a coffee/hot water outlet (8), a power cord (9), a milk jug (10), and a steam wand (11). Other components include a tamper (12), brewing head (13), coffee powder outlet (14), drip tray (15), floater (16), drip plate (17), and portafilter (18). Filter baskets include Single-Wall (19, 20) and Dual-Wall (19, 20) types for one or two cups. Accessories include a cleaning pin (21) and brush (22), and an accessory box (23). Indicators include Clean/Descale (24), Steam/Hot Water (31), and a Pressure Gauge (32). Control buttons include Power (27), Program (28), Double Cup (29), Single Cup (30), and Grinding buttons (25, 26).