Legal notice: This article is for informational purposes only and does not constitute professional advice. Always refer to the operating instructions for your coffee machine and the manufacturer's instructions for all cleaning products. If you are unsure, contact the manufacturer or an authorized service center. We accept no liability for damages. Use cleaning products only in accordance with the safety instructions on the product label.
Milk system maintenance for fully automatic coffee machines
The milk system of fully automatic coffee machines requires special attention, as milk fats and protein residues can accumulate there. In some cases, these can impair the taste and affect hygiene.
Why cleaning the milk system can be important
Milk residues can have various effects:
- Taste impairment: Old milk residue can alter the taste of coffee.
- Deposits: Milk fats and proteins can accumulate in pipes.
- Hygiene: Organic residues can provide a breeding ground for microorganisms.
- Malfunctions: Blocked lines can impair the milk foam quality.
Note: The frequency and intensity of these problems depend on usage and maintenance.
Recommended cleaning intervals
Many manufacturers recommend the following guidelines:
- Daily rinsing: Rinse with water after each use of milk.
- Thorough cleaning: Daily to weekly, depending on usage
- Deep cleaning: Use a special milk system cleaner according to the manufacturer's instructions.
Important: Please observe the specific recommendations of your device manufacturer.
Cleaning the milk system – General procedure
Safety note: Wear protective gloves. Consult the safety data sheets for all products used.
Daily cleaning
Step 1: Immediate rinsing
Rinse the milk system with clean water after each use. Many machines have an automatic function for this.
Step 2: Clean external parts
Clean the milk container, hoses, and frothing nozzle with warm water and mild dish soap. Rinse thoroughly.
Thorough cleaning with milk system cleaner
Special products are available for deep cleaning:
Our acidic milk system cleaner was specially developed for cleaning milk systems. The acidic formula helps to dissolve milk fats and protein residues.
Application (general steps):
- Dilute the cleaner with water according to the product instructions.
- Fill the milk system with the solution (according to the device instructions)
- Start a cleaning program or run it manually
- Pay attention to the exposure time
- Rinse thoroughly with clean water (several times).
Important: Always follow the specific operating instructions for your device and the product instructions.
Difference: Acidic vs. alkaline cleaners
Acidic milk system cleaners:
- Can milk fats and protein deposits dissolve
- Suitable for regular use
- Compatible with materials when used as intended.
Alkaline cleaners:
- Recommended for some systems
- Can address other types of pollution
- Follow manufacturer's instructions
Our Sauer 1L milk system cleaner is suitable for most common fully automatic coffee machines. Please refer to the product instructions.
Different types of milk systems
Integrated milk system: Permanently installed, cleaning via appliance program
External milk system: Separate milk containers with hose; parts are often dishwasher safe.
Cappuccinatore: Separate frothing unit, usually detachable
Note: Check the instruction manual for specific cleaning instructions.
Common problems and possible causes
Problem: Poor milk froth
Possible causes: Clogged nozzles, deposits
Action: Thorough cleaning with milk system cleaner
Problem: Unpleasant smell/taste
Possible causes: Old milk residue
Action: Immediate thorough cleaning
Problem: Reduced milk flow
Possible causes: Blocked pipes
Action taken: Deep cleaning, customer service if necessary.
If problems persist, please contact customer service.
What should be avoided?
- Insufficient rinsing: Can leave cleaning residue in the coffee.
- Incorrect cleaning agents: Descalers are not suitable for milk systems
- Infrequent cleaning can lead to stubborn deposits.
- Hot water with egg white residue: Can cause egg white to coagulate?
Information on home remedies
Sometimes home remedies like vinegar or citric acid are recommended. Keep in mind:
- Can seals and materials be attacked?
- They are not specifically designed for dairy systems
- Can leave a smell/taste
- Many manufacturers advise against it.
Special milk system cleaners are generally tested for material compatibility and food safety.
Preventive measures
- Rinse immediately after each use
- Regular cleaning according to manufacturer's instructions
- Use fresh milk
- Store milk containers in a cool place
- Clean external parts regularly in the dishwasher (if suitable).
Summary
Regular cleaning of the milk system can contribute to taste quality and hygiene. With suitable cleaning agents and the correct procedure, this maintenance can usually be carried out effectively.
For professional care, we recommend our milk system cleaner Sauer , which was specially developed for this application.
Final safety note: Use all cleaning products only according to the manufacturer's instructions. Observe the safety data sheets, hazard statements, and safety advice on the product labels. Keep cleaning agents out of the reach of children. In case of skin contact, rinse thoroughly with water. In case of eye contact, rinse immediately with plenty of water and seek medical advice. Do not ingest. Ensure adequate ventilation.
