The appearance of a red flashing icon with a drop or the inscription “Clean” on the screen of the Jura coffee machine requires an immediate start of the system flushing cycle. If you ignore this signal, the remaining coffee oils will harden inside the hydraulics, and scale will block the thin water supply channels to the boiler. Modern automatic systems Jura They themselves monitor the degree of contamination and signal the need for maintenance, but the user must know how to properly respond to these requests. Ignoring the procedures leads to a decrease in steam pressure, a change in the taste of espresso and eventual breakdown of expensive components.
Care process Jura is divided into two fundamentally different categories: daily hygiene of the brewing unit and periodic chemical decalcification. In the first case, you physically remove the mechanism, wash it with water and lubricate the rubbing parts with food-grade silicone. In the second, you start the automatic mode, during which the machine itself drives a special solution through the internal lines that dissolves mineral deposits. Understanding the difference between these procedures is critical to the longevity of your device.
To perform all the necessary manipulations, you will need a minimum set of tools: a tablet for cleaning coffee oils, a liquid decalcifier (or powder), food-grade silicone grease and a container for waste water. Do not use vinegar or citric acid, as they may damage the rubber seals and plastic elements of the internal system. hydraulics. Below we will analyze each stage of maintenance in detail so that your coffee always remains aromatic and your equipment works flawlessly.
Daily cleaning and maintenance of the brewing unit
The most important element of a coffee machine is the brewing unit, where the beans are directly brewed. In models Jura with P.E.P. system (Pulse Extraction Process) this unit is especially sensitive to cleanliness, since the pulsating water supply requires free movement of the pistons. Daily washing takes only a couple of minutes, but it prevents 90% of all possible breakdowns associated with jamming of the mechanism.
To begin, open the service door, usually located on the left or front of the chassis, and remove the unit. This should only be done when the machine is turned off or in standby mode, and not during a cooking cycle. Gently pull the unit towards you, being careful not to touch the internal sensors. If the mechanism is removed correctly, you will see two guides and the block itself with characteristic perforated disks.
⚠️ Attention: Never wash the brewing unit in the dishwasher. High temperatures and aggressive detergents will deform plastic parts and wash away the factory lubricant, which will lead to rapid wear of the mechanism.
Rinse the unit under warm running water without using stiff bristled brushes, which may scratch the surface. Pay special attention to mesh filters and rubber seals, where coffee slurry most often accumulates. Once dry, apply a thin layer of food grade silicone grease to the side guides and moving parts of the pistons. This will ensure quiet operation and smooth operation the next time you start the brew cycle.
- 🚿 Rinse the brewing unit with warm water immediately after removal, before the remaining coffee dries.
- 🛢️ Lubricate the guides only with food grade silicone intended for coffee machines.
- 👀 Visually inspect rubber seals for cracks or wear.
- 🔄 Install the block back until it clicks, checking the tightness of the fit.
☑️ Daily care for Jura
Automatic descaling: preparation and launch
When the limescale symbol lights up on the display or the machine indicates that descaling is necessary, the procedure must not be postponed. Hard water leads to the formation of scale inside the heating element (thermal block) and thin tubes, which reduces heat transfer and increases the preparation time of the drink. For models Jura E8, S8, Z10 and other series, the process is fully automated, but requires your attention at the preparation stage.
You will need a special descaling agent recommended by the manufacturer. Liquid decalcifier Jura preferable to powder, as it dissolves faster and does not leave sediment in the system. Pour the product into the water tank, add water to the maximum level and mix thoroughly. Do not use tap water to prepare the solution; it is better to use filtered or bottled water so as not to introduce additional minerals.
Launch the program through the maintenance menu. On modern models with a color display, you need to go to settings, select “Care” and then “Decalcification”. The machine itself will heat the water and begin to drive the solution through the system. The whole process takes about 20-30 minutes and is accompanied by sound signals when you need to empty the drip tray or add solution. The cycle cannot be interrupted, otherwise acid residues will remain inside.
| Process stage | User action | Machine action |
|---|---|---|
| Preparation | Pour decalcifier solution | Waiting to start |
| Heating | No action | Heating water to operating temperature |
| Flushing 1 | Empty tray when signaled | Pumping solution through the system |
| Flushing 2 | Fill with clean water | Final rinse with clean water |
Can other means be used?
The use of third-party descaling agents (vinegar, citric acid) may damage the internal seals and void the warranty. Genuine Jura products are formulated to have a pH balance that is safe for aluminum and plastic hydraulic components.
Removing coffee oils: tablet method
Coffee oils are the invisible enemy of your cup. Over time, they oxidize, acquire a rancid taste and spoil the aroma of fresh espresso. In addition, sticky deposits make the valves difficult to operate and can cause the “Infuser unit not inserted” error or pressure problems. To combat this, a special cleaning tablet is used. Jura Cleaning Tablet.
The procedure is started similarly to decalcification, but instead of a solution, one tablet is placed in the reservoir (or in the tablet compartment, if the model provides it). The machine dissolves it and drives active foam through all components. It is important to use tablets and not liquid for this procedure, since the tablet form provides optimal concentration of the active substance and foaming, which mechanically removes plaque from the walls.
During the cleaning cycle, the machine will stop several times and ask you to empty the tray. At this time, dirty brown water with abundant foam comes out of the system. Don't be alarmed, this is a normal reaction. Once the cycle is complete, the machine will automatically perform several rinses with clean water to remove any remaining chemicals. It is recommended to prepare one test coffee after completing the program and pour it out to be sure of the purity of the taste.
- 💊 Use only original oil cleansing tablets.
- ⏱️ Don't interrupt the cycle, even if the process seems long.
- 🚫 Do not use tablets for decalcification and vice versa, these are different chemical compositions.
- 🧼 After cleaning, be sure to run a rinse cycle.
Maintenance of the cappuccino maker and milk supply system
If your model Jura equipped with an automatic cappuccino maker (for example, the Fine Foam or One Touch system), then caring for the milk tract becomes priority number one. Milk is an ideal environment for bacterial growth, and if you do not flush the system after each use, a biofilm will form inside the tubes, which is then extremely difficult to remove.
Immediately after preparing a milk drink, the machine usually prompts you to start a quick rinse cycle. Never ignore this request. Remove the milk hose, place it in a container of water and start the program. For deep cleaning, use special cleaning tablets for milk systems or liquid once a week Jura Milk System Cleaner.
⚠️ Attention: Never leave milk in the cappuccino maker tubes overnight. Even in the refrigerator, the milk inside the tube will sour and clog the thin holes of the nozzle, which will lead to breakdown of the milk supply pump.
Disassemble the removable parts of the cappuccino maker and wash them in warm water. Make sure there is no dried residue in the air and milk intake openings. Some models allow you to adjust the amount of air and milk through the menu or by turning the ring on the cappuccino maker itself - check that these mechanisms are not blocked by dirt. Regular care ensures thick, velvety foam in every cup.
Cleaning the Exterior and Display
The appearance of the coffee machine also requires attention, especially if it is installed in a prominent place in the kitchen. Housings Jura often made of high-quality plastic with a soft-touch coating or stainless steel. Each type of surface requires its own means to avoid leaving streaks and damaging the coating.
Wipe the housing only with a slightly damp soft cloth. To remove coffee grease stains, you can use a special coffee machine cleaner in the form of a spray, but apply it to a cloth and not directly to the case so that liquid does not get inside through the display or button cracks. Pay special attention to the area around the dispenser where droplets often accumulate.
To polish stainless steel surfaces, use special cloths or steel sprays, moving strictly along the metal fibers to avoid micro-scratches.
Wipe the display and touch buttons with dry microfiber. If streaks appear on the screen, lightly moisten the cloth with distilled water. Do not use alcohol-containing liquids or aggressive household chemicals, as they can damage the oleophobic coating of the screen and make it dull.
Typical errors and troubleshooting
Even with regular maintenance, situations may arise when the machine behaves unusually. Often, users are faced with a message that the infuser is not inserted, although it is physically in place. This may mean that the unit is not inserted completely, the contacts are dirty, or the calibration of the mechanism is lost. Try removing the block, washing the contacts and reinserting it with a little force.
If the machine hums, but no water flows, the system may be airy. This happens after a long period of inactivity or filter replacement. In the service menu of many models Jura There is a function “Fill the system” or “Bleed air”. Start it, and the machine will pump the water itself, eliminating air pockets. If the problem persists, check that the water tank has not run out and that the CLARIS softener filter is installed correctly.
- 🔌 Check the tightness of the water intake hose connection.
- 💧 Make sure the CLARIS filter is installed correctly and does not block the flow.
- 🔄 Reset or reboot the machine.
- 🛠️ In case of persistent errors, contact the service center.
Regular cleaning of your Jura coffee machine is not just a matter of hygiene, but a way to extend the life of your expensive equipment and enjoy the perfect taste of coffee every day.
Frequently asked questions (FAQ)
How often should the CLARIS filter softener be changed?
Filter CLARIS designed for approximately 50 liters of water or 2 months of use, whichever comes first. The machine itself will remind you to replace it, but if you use very hard water, the resource may run out faster. After replacing the filter, be sure to run a system fill cycle.
Can the brewing unit be washed with soap?
It is not recommended to use regular laundry or dish soap, as it is difficult to completely rinse out of the porous structures of the block and can give off a coffee taste. It is best to limit yourself to warm water. If the unit is very dirty, use special cleaners for infuser units, but only as a last resort.
What should I do if the car says “Fill tank” even though it is full?
Most likely, the contacts of the water level sensor in the tank or in the machine compartment itself are dirty or oxidized. Wipe the contacts with a dry cloth. Also check that the tank is inserted correctly - it should click into place and the magnetic float inside the tank should move freely.
Do I need to lubricate the brewing unit after every cleaning?
It is not necessary to lubricate the block with silicone after each daily washing; it is enough to do this once every 1-2 months or when you notice that the block has begun to move less. However, it needs to be washed with water regularly, ideally every day or at least once every 3-4 days of active use.