The water tank is similar to the brewing group and water pipes: Over time, stubborn limescale builds up, which should be regularly removed with a high-quality premium descaler. The standard descaling process is usually sufficient. However, if the machine is left unused for a long time, unsightly limescale deposits will form, which can be easily removed with a slightly diluted premium descaler. If you know in advance that the coffee machine is going to be paused, it’s advisable to completely remove the water – otherwise, it could tip over and cause unpleasant surprises.
Step-by-step instructions for cleaning the water tank with descaler
🔧Materials required:
✅ Premium descaler (liquid or tablet form)
✅Fresh water
✅Soft cloth or sponge
✅Soft bristle brush (optional)
🚰Step 1: Remove and empty the water tank
- Switch off the fully automatic coffee machine and unplug it.
- Remove the water tank from the machine.
- Empty the remaining contents of the tank completely.
🧽Step 2: Rough cleaning of the water tank
- Rinse the tank with warm water.
- If there are any deposits or dirt residues, clean them with a soft sponge or brush.
🧴➕💧Step 3: Mix the descaling solution
- Read the instructions on the descaler packaging.
- Mix the recommended amount of descaler with water (usually 1:1 or according to the manufacturer’s instructions).
- Pour the solution into the water tank.
⏳Step 4: Exposure time
- Allow the descaling solution to work in the water tank for approximately 15–30 minutes.
- If the tank has heavy limescale deposits, you can gently shake it or work it with a soft brush.
🚿Step 5: Rinse
- Empty the water tank completely.
- Rinse it thoroughly several times with clean water to remove any residue from the descaler.
- Wipe the tank with a clean, dry cloth.
🔄Step 6: Reinsert the water tank
- Reinsert the cleaned and descaled water tank into the machine.
- Fill it with fresh water.
- Turn the fully automatic machine back on and run one or two rinse cycles to ensure that no descaler residue remains in the machine.
💡Tip:
- Clean and descale the water tank regularly (every 2-4 weeks depending on water hardness).
- To avoid damage to the machine, use only descaling products recommended by the manufacturer.
✅ Done! Your water tank is now clean and free of limescale. 😊
