The carob coffee machine we are considering DeLonghi Dedica EC685 is a compact and stylish solution for those who value quality coffee but are limited in space in the kitchen. This model became an evolutionary continuation of the legendary series, maintaining a narrow body with a width of only 15 centimeters, but receiving an improved thermal block and quieter operation. Owners are often looking for information on how to properly adjust grinding or decalcify so that the device can serve for many years without failure.
Proper operation begins from the moment of unpacking and the first setting of cooking parameters. Many users make the mistake of ignoring the initial flush of the system or using the wrong grind, which leads to disappointment with the taste of the drink. In this article we will analyze in detail all the nuances of working with carob coffee machine, from preparation to troubleshooting common faults.
Understanding how your device works will allow you to get a barista-quality drink at home every time. We'll cover maintenance, cleaning, and fine-tuning pressure, all of which are critical to extracting the aromatic oils from the coffee bean.
Initial preparation and launch of the device
Before preparing your first cup of espresso, you need to properly prepare DeLonghi EC685 to work. The device comes with protective elements inside that need to be removed, and also requires flushing the hydraulic system to remove factory dust. Skipping this step may negatively affect the taste of the first portions and the performance of the pump.
First, remove all packaging materials, including tape and foam inserts. Pay special attention drip tray and water tank - they should be washed thoroughly with warm water and a mild detergent. Do not use abrasive pads as they may leave micro-scratches on the plastic.
Fill the tank with fresh cold water to the MAX line. It is important to use filtered water to minimize scale formation in the future, which is especially important for models with a thermoblock. Insert the tank until it clicks and turn on the device with the power button.
⚠️ Attention: Never turn on the coffee machine without water in the tank. Running the pump “dry” can lead to overheating and failure of the pump or thermoblock.
After switching on, the indicators will begin to flash, signaling the warming up process. When they light up steadily, you need to perform a rinse cycle without coffee. To do this, raise and lower the brew lever (or press the corresponding button if the model has a display, although on the EC685 it is a mechanical lever) so that the water flows through the group. This will remove any remaining industrial grease and stabilize the temperature.
Use distilled or bottled water for the first start-up to completely eliminate the risk of sediment getting into the system during the first heating.
Grinding setting and filter selection
The quality of your espresso depends 90% on the correct grinding and the selected filter. DeLonghi EC685 comes with a set of filters, each of which is designed for a specific type of coffee product. The wrong choice will either cause the water to flow out in a stream (too coarse grind) or to drip one drop at a time (too fine).
The set usually includes filters for ground coffee (1 cup and 2 cups) and a filter for ESE 44 mm pods. If you're using freshly ground coffee, choose a filter with one or two holes in the bottom, depending on the number of servings. For pods there is a filter with one large hole in the middle.
- ☕ Single filter: designed for 7 grams of ground coffee, suitable for one espresso shot.
- ☕☕ Double filter: holds up to 12-14 grams of coffee, ideal for making two cups or one large one.
- 📦 Filter for pods: used exclusively with ESE pressed tablets, does not require tamping.
The grind should be fine, but not powdery. If the water flows too quickly and the coffee tastes light and sour, grind the grind finer. If the liquid drips in rare drops or does not flow at all, and the coffee is bitter, dilute the mixture or make the grind coarser. Adjusting the grind level of a coffee grinder is a key skill for the owner carob machine.
Coffee making process
Drink preparation technology DeLonghi Dedica requires compliance with a certain sequence of actions to achieve the ideal cream. First, warm up the cup by placing it on the upper platform, which is heated by the heat of the operating device. A cold cup will instantly take the temperature away from the espresso, ruining the flavor balance.
Pour coffee into a cone (holder) with a small slide. Using a tamper (flat tamper), press the coffee evenly and firmly. The movement must be strictly vertical, without distortions, so that the density of the coffee tablet is the same over the entire area. Shake off any excess coffee from the edges.
☑️ Algorithm for making the perfect espresso
Insert the horn into the brewing unit and turn until it stops. Immediately press the cook button. During the first few seconds, air may come out of the spout - this is normal. The ideal espresso should flow in a dense stream, reminiscent of a “mouse tail”, and have a thick golden brown crema on the surface.
To prepare cappuccino, use a cappuccino maker. Place the tube in the milk and turn on the steam. After use, be sure to blow steam through the tube and wipe with a damp cloth to prevent the milk from drying inside the channel.
Automatic decalcification (Descale)
Regular descaling is the key to a long life DeLonghi EC685. Hard water leads to the formation of limescale inside the thermoblock, which reduces pressure and impairs heat transfer. The device itself signals the need for a procedure with a flashing indicator.
For the procedure, you will need a special decalcification agent (DeLonghi EcoDecalk or equivalent) and a container with a volume of at least 1 liter. Mix 100 ml of product with 1 liter of water in a tank. Start the cleaning mode by holding the steam button for 10 seconds (or following the button combination in your modification) until the indicators begin to flash alternately.
| Stage | Action | Indication |
|---|---|---|
| 1 | Start mode | The indicators flash alternately |
| 2 | Solution supply | Opening the steam valve, draining into the pan |
| 3 | Pause | Waiting 30 minutes |
| 4 | Flushing | Draining clean water (3 full tanks) |
During the descaling process, the machine will periodically stop the flow of liquid. This is a normal situation that allows the solution to act on the scale. Do not turn off the device at this moment. After completing the cycle with the solution, it is necessary to flush the system three times with clean water, filling the reservoir to the maximum each time.
⚠️ Attention: Never use vinegar or citric acid to descale DeLonghi. Acid can damage rubber seals and plastic parts of the hydraulic system, leading to leaks.
Troubleshooting and Errors
Even reliable technology sometimes fails. Understanding Signals coffee machines will help quickly return it to service. Most often, problems are associated with air locks in the system or clogged filters.
If the lights are flashing quickly and simultaneously, this often indicates that the pump is congested. This happens if the tank has been empty for a long time or the water runs out during operation. To eliminate this, open the steam valve and turn on the water supply until a smooth stream comes out of the tube without “spitting”.
What to do if water does not come through the spout?
If the grind is too fine or the coffee is pressed too hard, water may not flow through. Try a coarser grind or use less force when tamping. Also check if the filter strainer is clogged.
Weak steam pressure may indicate contamination of the cappuccino maker opening. Remove the nozzle (pannarello) and clean the hole with a thin needle or paper clip. Also check if an air bubble has formed in the milk collection tube.
Most “breakdowns” of the DeLonghi EC685 can be resolved by proper decalcification or removal of the air lock from the system.
Maintenance and care
To maintain appearance and functionality DeLonghi Dedica Regular care is required. The stainless steel or plastic housing should be wiped with a soft, damp cloth. Do not use harsh chemicals.
It is recommended to wash the tray and grate weekly. Once a month, it is advisable to remove the brewing unit (if the design of your EC685 modification allows this; in some versions it is not removable, then backwashing is required) and check the O-ring. If the ring is damaged, it must be replaced to prevent water from leaking from under the horn.
- 💧 Daily: Rinsing the cappuccino maker and wiping the group after each use.
- 🗑️ Weekly: Washing the tray and water tank.
- 🔧 Monthly: Checking the integrity of filters and seals.
Timely replacement of water filters (if you use a cartridge in the tank) will significantly extend the life of the heating element. Replace the cartridge every 2 months or after 50 liters of water, whichever comes first.
Frequently asked questions (FAQ)
Why does my EC685 coffee machine hum but no coffee comes out?
Most likely, there is an air lock in the pump or the coffee is ground too finely. Try opening the steam valve slightly when turning on the water supply to release the air. If it doesn’t help, reduce the grinding degree.
Can I use ground coffee beans?
No, in DeLonghi Dedica no built-in coffee grinder. You should use pre-ground coffee or buy beans and grind them separately. Putting whole beans into the cone will damage the device.
How often should decalcification be done?
The frequency depends on the hardness of your water. When using filtered water - once every 3-4 months. For hard tap water - once every 1-2 months or according to the indicator signal.
Why does water flow from under the horn?
The reason may be a worn o-ring, coffee particles getting on the gum, or the horn not turning enough during installation. Check the cleanliness and integrity of the seal.