INASKA x Guppyfriend

Sustainable Washing
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INASKA x Sustainable Washing


All clothes lose fibers during the washing process. The fibers break out of the structure of the fabric due to mechanical stress and abrasion. The broken fibers are typically 50 µm to 15 mm long and mostly no thicker than 10 µm. 1 µm = 0.001 mm or about 0.000039 inches. That doesn’t sound like a lot at first. An estimated 3,000 fibers are released per wash cycle (source: BUND 2020). These fibers cannot be completely removed from the water during the regeneration process in sewage treatment plants. This leads to microplastics ending up in our groundwater and also in the sea.

Wendbares Bikini Top PURE

How can we wash more sustainably?

That makes us sit up and take notice, and we ask ourselves, how can we not only protect our products but also the environment while washing? And how can we help make our washing processes more ecological? Together with our product partner Guppyfriend, we have collected some valuable tips for sustainable washing for you.

Reduce your washing temperature

The hotter you wash, the stronger the fiber breakage. This is because the fibers become softer and can therefore be removed more easily.


Use environmentally friendly detergent

During each wash, your detergent is pumped out of the washing machine into our water cycle. Ecologically degradable detergents can be regenerated more quickly and can be removed from the water without leaving any residue. In the meantime there are even alternatives like the laundry ball, which help you to use almost no detergent.


Air dry laundry

We know that the dryer makes life (especially with children) a lot easier. Unfortunately, the greatest fiber abrasion occurs in the dryer. It is better if you let your laundry air dry. Not only do you save energy and money, but you also extend the durability of your clothing as it is less prone to fiber breakage.


Reduce the spin speed

Your washing machine has specified a specific spin speed for each program, but this is usually not necessary. The lower the spin speed, the less friction there is, so that your clothes are protected. But be careful: Avoid the gentle cycle! Because a very large amount of water is added to the laundry and thus more fibers are flushed out (you can find more about this in a study of the Plymouth University).


Use a washING bag

During washing, fibers break out of the structure of the fabric due to mechanical stress and abrasion. When using a wash bag such as the Guppyfriend, you can dispose of the broken fibers in the residual waste immediately after washing. Due to the special production method of the wash bag, the fibers cannot escape from the Guppyfriend. In order to get through the opening, the fiber would have to pierce vertically through the tissue. Due to the water in and around the bag and the movement, the fibers are never positioned vertically, but always slightly curved. So you cannot pierce through the tissue. Even if a fiber should stick out of the fabric, it will be pushed back into the bag. Wash bags protect clothing and reduce fiber loss by up to 86 percent (according to a test by the Fraunhofer Institute) compared to washing without.






We think this is a good alternative and without further ado we added the Guppyfriend wash bag to our shop!


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