Regular coffee maker maintenance Krups is critical to maintaining the quality of your morning drink and the longevity of the device itself. The water used to prepare espresso contains hardness salts, which over time are deposited on the heating elements and in the tubes, forming a dense layer of scale. If you ignore the need decalcification, the performance of the machine will drop sharply, and the taste of the coffee will acquire an unpleasant metallic tint.
Many owners of automatic and carob models are faced with the fact that the machine begins to make noise, takes longer to heat up, or completely stops supplying water at the required pressure. These are sure signs that the hydraulic system is clogged with lime deposits. Timely flushing allows you to avoid expensive repairs in a service center and maintains the manufacturer’s warranty.
In this article, we will examine in detail the process of cleaning various components of the coffee machine, from the removable brewing unit to the internal circuits. You will learn which products are best for Krups, how to correctly activate the cleaning mode and what mistakes users most often make when servicing equipment.
Signs that your coffee maker needs urgent cleaning
You can determine the moment when the coffee machine requires immediate intervention by a number of indirect signs that appear during operation. First of all, pay attention to the time it takes the device to heat the water to operating temperature. If previously this process took 30 seconds, but now it takes a minute or more, it means that the scale layer is on thermoblock is already quite large and prevents effective heat transfer.
The second important indicator is a change in the sound of the pump. A working machine hums smoothly and monotonously, while a dirty system makes whistling or gurgling sounds, indicating obstructed fluid circulation. There may also be a decrease in pressure in the cone or cappuccino maker, causing the foam on the coffee to become loose and the milk foam to become liquid.
⚠️ Attention: If the cleaning indicator (fast flashing red light or drop symbol) comes on continuously, you cannot ignore it. Automation Krups blocks coffee preparation at a critical level of contamination to prevent overheating and damage to the pump.
The third signal is the visual state of the water jet. Instead of a powerful stream, a thin stream or splash may drip from the dispensers. This indicates that the flow area of the tubes and nozzles has decreased due to deposits. In such cases, simply washing with water will no longer help; you will need to use special decalcifiers.
Finally, the most obvious but often overlooked attribute is taste. A sour or bitter taste, unrelated to the quality of the beans, is often caused by old oil residues in the brewing unit or a limescale taste in the water. Regular hygiene machine components ensures that you drink only pure coffee.
Preparation for the procedure: tools and means
Before starting the active cleaning phase, it is necessary to prepare the workplace and all consumables. For coffee machines Krups Manufacturers often recommend using their own brand of liquid products, but there are also universal analogues that effectively deal with scale. The main requirement is that the product should not contain hydrochloric acid, as it is aggressive to metal parts and rubber seals.
You will need a soft microfiber cloth that does not leave lint and a container to collect water with a capacity of at least 1 liter. If your model is equipped with a removable brewing unit, it is better to first remove it and rinse it under running water to remove large coffee particles. This will make it easier for the cleaning solution to pass through the system.
- 🧴 Decalcifier: Liquid or tablet product for removing hardness salts (necessarily compatible with automatic coffee machines).
- 💧 Water: Fresh drinking water for preparing the solution and subsequent rinsing (preferably filtered).
- 🧽 Tools: A soft brush (often included), a sponge and a container for soaking removable parts.
- 🧤 Protection: Rubber gloves to protect your hands from contact with concentrated cleaning products.
It is also important to ensure that the coffee machine is placed on a stable, horizontal surface near the sink. As decalcification progresses, the volume of fluid in the system will increase and it may be necessary to drain the water into a drain pan, which will need to be emptied frequently. Clear the space around the device in advance.
Use only soft water to prepare the solution. Hard water will reduce the effectiveness of the descaler and will require more frequent cleaning procedures in the future.
Activating the cleaning mode on Krups coffee machines
Most modern models Krups, such as series Essenza, Nespresso or EA81, equipped with an automatic decalcification mode. Starting this mode puts the machine into a special algorithm, where it itself regulates the supply of solution and pauses for its effect on the internal walls. Activation usually requires holding down a specific combination of buttons.
On classic manual models, it is often necessary to simultaneously hold down the espresso and lungo buttons for 5-10 seconds until the indicators begin to flash in a certain rhythm. In more advanced versions with a display, you need to enter the settings menu by selecting Wartung (Service) or Entkalken (Decalcification). The exact sequence for your model can always be found in the instructions, as it may differ depending on the year of manufacture.
| Model Krups | Button combination | Start indication | Cycle duration |
|---|---|---|---|
| Inissia / Essenza | Lungo + Lemon (3 sec) | Flashing buttons | ~20 minutes |
| EA81 / EA82 | Menu -> Care -> Decalcification | Text on screen | ~30 minutes |
| Nespresso Prodigio | Application + Button | Bluetooth flashing | ~15 minutes |
After activating the mode, the machine will ask you to pour the prepared decalcifier solution into the tank. It is important to follow the proportions indicated on the packaging of the product. Usually this is one cap of concentrate per 500 ml or 1 liter of water. Do not pour pure product directly into the tank without diluting, unless this is provided in the instructions for the specific product.
Once the solution is poured, the process usually starts automatically or after confirmation with a button. The machine will begin to flow fluid through the system intermittently. These pauses are necessary so that the active substances have time to dissolve the deposits. It is not recommended to interrupt the process, as this may disrupt the operation algorithm of the electronics.
☑️Preparing for cleaning mode
☑️ Empty water tank
Manual cleaning of the brewing unit and hydraulic system
Automatic descaling cleans the inner tubes and heater, but does not affect the brew group if it is removable. This is where coffee oils remain, which, when oxidized, spoil the taste of new coffee. In cars Krups with the system Compact or similar, the unit is removed through the service door on the front or side.
Remove the unit and wash it thoroughly with warm water without using detergents. Chemicals can leave a film that gives the coffee an off-flavor. Use a soft brush to remove any trapped particles between the burrs or pistons. Pay special attention to the mesh filter and rubber seals - they need to be carefully wiped with a damp cloth.
If the brewing unit is non-removable (as in some capsule models), cleaning is done by backwashing or using special tablets. The tablet is dropped into the capsule compartment or directly into the tank (depending on the model) and the brew cycle starts without a cup. The dissolved product effectively breaks down fats inside the mechanism.
⚠️ Attention: Never lubricate the brewing unit with edible oil or petroleum jelly! For rubber seals in coffee machines Krups this is destructive - the rubber swells and loses its elasticity, which leads to leaks.
After mechanical cleaning, allow the parts to dry completely at room temperature. Do not use a hair dryer to speed up the process, as sudden heat can deform the plastic elements. Assembly should be carried out only after complete drying, so that a favorable environment for mold does not form inside.
Cleaning the cappuccino maker and steam wand
The cappuccino machine is an area of increased risk for bacterial growth, since milk is an ideal nutrient medium. Even microscopic milk residues in the tube begin to emit an unpleasant odor after a few hours and can clog the steam hole. Washing should be done immediately after each use.
For automatic cappuccino makers Krups there is a function Rinse (Rinse). Place the tube in a container of water and start this mode. The machine will purge the system with steam and water, removing any remaining milk. If there is no such function, just turn on the steam for a few seconds, after immersing the spout in water.
- 🥛 Removable cappuccino maker: Disassemble the structure completely, rinse all parts under warm water using a brush for narrow areas.
- 💨 Purge: After each preparation of milk, be sure to turn on the steam briefly to blow out any remaining liquid from the tube.
- 🧼 Deep Cleaning: Once a week, soak the cappuccino maker parts in warm water and a mild detergent, then rinse thoroughly.
If you notice that the steam is weak or intermittent, the hole may be clogged with dried milk or scale. In this case, use a thin needle or special wire (often included) to carefully clear the hole. Be careful not to widen the calibrated hole and disrupt the steam pressure.
What to do if the cappuccino maker still does not froth the milk?-->
spoiler:If the problem persists after cleaning, check the quality of the milk. For good foam you need milk with a fat content of 3.2-3.5% and a temperature of 4-5 degrees. The reason may also be wear of the Teflon coating of the tube, which requires replacement of the part.
Final stage: rinsing and testing
After going through the decalcification cycle and manual cleaning, a cleaning agent remains in the system, which should absolutely not be ingested. The hydraulic system must be thoroughly flushed. To do this, fill the tank with clean water to the maximum and start the drink preparation mode (without coffee) or rinse mode.
Drain at least two full tanks of water through dispensers. This ensures that all acid or alkali residues are removed. The output water should be absolutely clear, odorless and foamless. If you feel even a slight aftertaste of the product, the rinsing procedure must be repeated.
Now you can carry out a test run. Prepare one cup of espresso and pour it out. Evaluate the smell and taste. If everything is in order, the machine is ready for use. Wipe the exterior of the case with a damp cloth to remove fingerprints and any possible cleaner splashes.
Good rinsing is a critical step. Chemical residues can not only spoil the taste of coffee, but also damage the internal rubber seals during prolonged contact.
Common maintenance errors and prevention table
Many users make mistakes that ruin all cleaning efforts or even damage the equipment. The most common of them is the use of vinegar or citric acid in its pure form instead of specialized products. Acetic acid is too aggressive for aluminum alloy thermoblocks Krups and can be corrosive and has a persistent odor that is difficult to remove.
Another mistake is ignoring the frequency of changing the water filter (if one is installed in the tank). Filter Clarissimo or similar must be changed strictly after the expiration of the period (usually 2 months) or after a certain volume of water passed through. An expired filter not only does not soften the water, but also becomes a source of bacteria.
To systematize your care, use the following table of frequency of procedures:
| Procedure | Frequency | Required funds | Lead time |
|---|---|---|---|
| Rinsing the cappuccino maker | After each use | Water | 1 minute |
| Cleaning the brewing unit | Once a week | Water, brush | 5-10 minutes |
| Replacing the water filter | Once every 2 months | New cartridge | 5 minutes |
| Decalcification (removal of scale) | Once every 2-3 months | Decalcifier | 30-40 minutes |
Following this schedule will allow your coffee machine to Krups serve for many years without serious breakdowns. Remember that the cost of regular maintenance is not comparable to the cost of replacing a heating element or high-pressure pump.
⚠️ Attention: Do not attempt to disassemble the coffee machine for “deep” cleaning unless you have electrical repair skills. This will void your warranty and may be dangerous due to the high voltage inside the device.
Get into the habit of writing down the date of your last decalcification directly on the water tank with a marker or in the notes on your phone. This will help you not to miss the next procedure.
Questions and answers (FAQ)
Can citric acid be used instead of Krups special product?
It is not recommended to use regular food grade citric acid. It may not completely dissolve and clog narrow channels with crystals, and also does not have a strong enough effect against complex scale in modern thermoblocks. It is better to buy a specialized liquid decalcifier.
Why did my coffee taste less good after cleaning?
Most likely, the car was not rinsed well and there were traces of cleaning agent in the water. It is also possible that you have not changed your water filter for a long time or are using low quality beans. Try running another 1-2 liters of clean water through the machine.
How often should the brewing unit be lubricated?
Factory lubricant in brewing units Krups usually food grade and designed for the entire service life of the unit. Additional lubrication is required only if squeaking or stiffness occurs, and only special food-grade silicone approved by the manufacturer should be used.
What does the flashing red light after cleaning mean?
If the light continues to flash after the cycle has completed, the process may have been interrupted or the scale level may be too high. Try repeating the decalcification cycle. If this does not help, diagnostics may be required at a service center.
Can the removable parts be washed in the dishwasher?
Most plastic parts (reservoir, tray) can be washed. However, it is better to wash the brewing unit and parts of the cappuccino maker with metal meshes by hand, as aggressive dishwasher tablets can damage the coating or deform thin plastic at high temperatures.