FAQ - questions and answers.
Laundry hygiene.

What is EDTA?

EDTA is ethylenediaminetetraacetic acid. It is used in detergents and cleaning agents to soften water. EDTA is poorly biodegradable in sewage treatment plants. It can dissolve toxic heavy metal salts from the sludge is then fed perhaps even into our drinking water. Therefore, we have never used EDTA in our products.

Doing laundry: How to do it right?

All about laundry and stain removal, we have summarized many tips and tricks and valuable information for you in our laundry fibula.


Why is it so important to load the washing machine right?

The amount of water and the amount of detergent are designed for a correct load size. Too low of loadings can result in the detergent being overdosed. This leads to detergent residues, gray wash and skin irritation.

Overcharging is bad for the machine because the ball bearings etc. are not designed for it and will be worn early.

More tips on how to do laundry right is summarized in our laundry fibula.

Do you need special detergent for colored fabrics?

Coloured fabrics differ from heavy-duty detergents especially by the low content of bleach. In addition, color detergent does not include any brighteners as they can lead to color changes. So that the laundry's colors remain rich and vivid, most colored fabrics have additives, so-called color care agents and dye transfer inhibitors.

If you permanently use colored fabrics for white washing, they will degray by the lack of bleaching agents and optical brighteners.

You can find more information in our wash fibula.

What are the benefits of liquid detergent components compared to washing powder?

    Specially matched blocks allow for optimal washing results at any temperature and at any water hardness. We adapt the dosage to your needs. Our modern dosing device ensures that it is impossible to overdose or underdose washing detergent. In contrast to washing powder, your team does not have any direct contact with the chemicals if using liquids. This makes doing laundry especially safe. Also, thanks to our advanced technology, the precise dosing and the carefully selected ingredients contribute to environmental protection.

    Interested in a turnkey metering? Our team will be very happy to consult you. The price also includes the installation and the briefing of your staff members.

    How to remove bell pepper and tomato stains?

    Bleachable stains such as bell paprika, coffee and grass stains can be removed effectively with a soaking havon ACTIVE stain salt. For this, dissolve 40 milliliters of havon ACTIVE in five liters of warm water and let your laundry soak overnight or for two hours. Afterwards, wash as usual. Alternatively, you can use havon ACTIVE directly in the washing machine. For this, in addition to washing powder simply add between 20 to 40 milliliters of ACTIVE to the dishwashing compartment in addition to the washing powder and wash as usual. Please refer to the fabric care symbols. In our stains guide you find more tips and tricks on how to successfully remove stains of various kinds.

    How to remove grease and oil-based stains, for example, fat splashes, sauce, make-up and machine oil stains and water marks on shirt collars?

    For this kind of stains, we recommend spraying havon FS in an undiluted form on the dirt or stain edges. In case of kitchen grease on white cotton, for example, chef's jackets, you can use RADIKALIN instead of havon FS. Let it work for about 15 minutes and then wash as usual. Alternatively, you can use havon V8 detergency boosters in the prewash dose. Please refer to the fabric care symbols.

    In our stains guide you find more tips and tricks on how to successfully remove stains of various kinds.

    How come my laundry is grey and hard?

    Gray, scratchy laundry indicates calcium deposits. You can avoid calcium deposits when you dose the detergent correctly and also use a softener such havonCALC in case you have hard water.

    To avoid detergent residue, you dose the detergent exactly as prescribed and load the machine correctly. A capped back of the hand should fit between the inner wall of the drum and the laundry. Also, have the manufacturer of your washing machine check the level of water and increase it if necessary.

    You have to decalcify so that your gray, hard laundry will become white again:  Place your laundry in a ten-percent ecosol DESCALER solution (100 milliliters ecosol DESCALER and 900 milliliters of water) for at least two hours. Alternatively, you can descale directly inside the washing machine: A 4-5 kilogram machine needs a liter of ecosol DESCALER. Wash your laundry at 60 degrees Celsius. You not only descale your laundry, but also the washing machine and heating elements.

    How do I dose my washing powder correctly?

    On the washing powder bag you will find an overview on how to dose the detergent properly. Depending on the degree of soiling and water hardness, please enter the suggested dosage to avoid encrusted,gray, dirty laundry or damage to the washing machine from lime dpositis. To find out about your water hardness, consult the local water company.

    What do fabric softeners do and how environmentally friendly are they?

    Softeners provide high-quality, modern raw materials for a supple and antistatic laundry. They reduce the time in the dryer and facilitate ironing thanks to nourishing ingredients. Another advantage: The laundry looks new for a longer period of time. We only use environmentally friendly raw materials that can be broken down easily for our fabric softener.

    What does the abbreviation NTA mean?

    NTA is nitrilotriacetic. With NTA water is softened in washing and cleaning centers. Since it is classified as harmful at a certain amount used, we do not use NTA in our green efficiency products.