DOMO DO1138K Espressomachine Instruction Manual

1. Introduction

Thank you for choosing the DOMO DO1138K Espressomachine. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new appliance. Please read all instructions carefully before first use and retain this manual for future reference.

The DOMO DO1138K is designed to deliver high-quality espresso and milk-based coffee beverages, featuring a 20 bar ULKA pump, an integrated manometer for precise pressure control, and a professional steam nozzle.

Image 1.1: The DOMO DO1138K Espressomachine with a cup of espresso. This image shows the overall design of the machine, including the control panel, portafilter, and steam wand.

2. Safety Instructions

Please observe the following safety precautions to prevent injury or damage to the appliance:

• Read all instructions before operating the appliance.
• Do not immerse the appliance, power cord, or plug in water or other liquids.
• Ensure the voltage indicated on the appliance matches your local mains voltage.
• Keep hands and cords away from hot surfaces and steam.
• Unplug the appliance from the outlet when not in use and before cleaning.
• Do not operate the appliance with a damaged cord or plug.
• This appliance is for household use only.
• Children should be supervised to ensure they do not play with the appliance.

3. Product Overview

Familiarize yourself with the components of your DOMO DO1138K Espressomachine.

3.1 Components

• Water Tank: Removable tank for fresh water.
• Control Panel: Power button, espresso brew button, steam function button.
• Manometer: Displays brewing pressure.
• Portafilter: Holds ground coffee.
• Filter Baskets: For single or double espresso.
• Steam Wand: For frothing milk.
• Drip Tray: Collects excess liquid.
• Cup Warming Tray: Located on top of the machine.

Image 3.1: Exploded view of the DOMO DO1138K Espressomachine components. This image illustrates the separate parts including the water tank, portafilter, filter baskets, drip tray, and measuring spoon.

3.2 Control Panel

Image 3.2: Close-up of the control panel. This image highlights the manometer on the left, the power button (left blue light), the espresso brew button (middle blue light with coffee cup icon), and the steam function button (right blue light with steam icon).

• Power Button (ⓘ): Turns the machine on/off.
• Espresso Brew Button (☕): Initiates or stops espresso brewing.
• Steam Function Button (💨): Activates the steam function for milk frothing.
• Rotary Knob: Controls steam release for the steam wand.

4. Setup

4.1 Before First Use

1. Remove all packaging materials and stickers from the appliance.
2. Clean the water tank, portafilter, and filter baskets with warm water and mild detergent. Rinse thoroughly.
3. Wipe the exterior of the machine with a damp cloth.

4.2 Filling the Water Tank

1. Remove the water tank from the back of the machine.
2. Fill the tank with fresh, cold water up to the MAX level indicator. Do not use hot water or other liquids.
3. Place the water tank back into its position, ensuring it is seated correctly.

4.3 Priming the Machine

Before brewing coffee or frothing milk for the first time, or if the machine has not been used for a long period, it needs to be primed:

1. Ensure the water tank is filled.
2. Place a cup under the portafilter spout (without coffee).
3. Press the Power button (ⓘ). The lights will flash as the machine heats up.
4. Once the lights are solid, press the Espresso Brew button (☕). Water will flow through the portafilter. Let it run for about 30 seconds, then press the button again to stop.
5. Repeat this process for the steam wand: press the Steam Function button (💨), wait for the light to become solid, then turn the rotary knob to release steam for a few seconds. Turn the knob back to close, then press the Steam Function button again to turn off.

5. Operating Instructions

5.1 Making Espresso

1. Prepare Coffee: Use freshly ground espresso coffee. For a single shot, use one level scoop (approx. 7g) in the single filter basket. For a double shot, use two level scoops (approx. 14g) in the double filter basket.
2. Tamp Coffee: Distribute the coffee evenly in the filter basket and tamp firmly with a tamper. Ensure the coffee bed is level.
3. Attach Portafilter: Insert the filter basket into the portafilter. Attach the portafilter to the group head by aligning it and twisting firmly to the right until it is secure.
4. Pre-heat Cups: Place your espresso cups on the cup warming tray or rinse them with hot water.
5. Brew Espresso: Ensure the machine is on and the lights are solid (indicating it's heated). Place the pre-heated cup(s) under the portafilter spouts. Press the Espresso Brew button (☕).
6. Monitor Pressure: Observe the manometer during brewing. The optimal pressure range for espresso is typically between 9 and 12 bar. Adjust grind size and tamping pressure if the manometer consistently reads too high or too low.
7. Stop Brewing: Once the desired volume of espresso is reached (typically 25-30ml for a single shot, 50-60ml for a double shot), press the Espresso Brew button (☕) again to stop the flow.
8. Remove Portafilter: Carefully remove the portafilter by twisting it to the left. Dispose of the used coffee grounds (coffee puck).

5.2 Frothing Milk

1. Prepare Milk: Fill a stainless steel frothing pitcher with cold milk (dairy or non-dairy) to just below the spout.
2. Activate Steam: Press the Steam Function button (💨). Wait for the light to become solid, indicating the machine has reached steaming temperature.
3. Purge Steam Wand: Position the steam wand over the drip tray and briefly turn the rotary knob to release any condensed water. Close the knob.
4. Froth Milk: Immerse the tip of the steam wand just below the surface of the milk. Turn the rotary knob to full steam. Angle the pitcher to create a swirling motion. As the milk expands and heats, lower the pitcher slightly to keep the tip just below the surface.
5. Monitor Temperature: Continue frothing until the milk reaches the desired temperature (approx. 60-65°C or too hot to touch comfortably).
6. Stop Steam: Turn the rotary knob to close the steam, then remove the pitcher. Press the Steam Function button (💨) to turn off the steam heating.
7. Clean Steam Wand: Immediately wipe the steam wand with a damp cloth to remove any milk residue. Briefly purge the steam wand again to clear any internal milk.

6. Maintenance

Regular cleaning and maintenance will ensure the longevity and optimal performance of your espressomachine.

6.1 Daily Cleaning

• Portafilter and Filter Baskets: After each use, remove the portafilter, discard coffee grounds, and rinse the portafilter and filter basket under hot water.
• Drip Tray: Empty and rinse the drip tray daily.
• Steam Wand: Clean immediately after each use as described in Section 5.2.
• Exterior: Wipe the exterior of the machine with a soft, damp cloth. Do not use abrasive cleaners.

6.2 Water Tank Cleaning

Clean the water tank weekly with warm water and a mild detergent. Rinse thoroughly to remove any soap residue.

6.3 Descaling

Over time, mineral deposits (limescale) can build up inside the machine, affecting performance. Descale your machine every 2-3 months, or more frequently if you live in an area with hard water. Use a commercially available descaling solution specifically designed for coffee machines and follow the product's instructions carefully. Always rinse the machine thoroughly with several cycles of fresh water after descaling.

7. Troubleshooting

If you encounter issues with your DOMO DO1138K, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, please contact customer support.

8. Specifications

Technical details for the DOMO DO1138K Espressomachine:

Image 8.1: The DOMO DO1138K Espressomachine with key dimensions (length, width, height) indicated.

9. Warranty and Support

For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support or service inquiries, please contact the manufacturer, DOMO, or your authorized dealer.