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Testing for the best ones: Laundry detergent research at Persil

A woman in white lab clothes looks up from the microscope and looks over her left shoulder into the camera.

Persil is a detergent that makes special demands on itself. And has been for over 100 years now. Purity, performance, and the protection of the textiles are the focus of our research and development to always achieve the best result for you.

The variety of materials and textile compositions has never been greater than today. It is therefore all the more important to do justice to these materials with the right detergent - so that you can enjoy your favourite pieces of clothing for a long time to come. Your textiles should become spotlessly clean, the colours should remain bright and the fabric should be as beautiful as on the first day.

To achieve this, a large number of extensive tests are carried out. This is the only way to ensure that we can offer you reliable quality.

A brief overview of the various tests:

A special stain soiling machine is used to apply frequently occurring soiling such as cocoa, make-up, lipstick, red wine or machine oil to pieces of laundry. The even, almost identical stains provide ideal conditions for comparative washing tests, which are carried out with 400 washing machines of different brands or different countries of origin.

In this way, over one million stains are washed and subsequently evaluated every year. Whether the textiles are affected by greying or whether the colours are retained, we can check in our sampling room under special, constant lighting conditions.

The textiles are then tested in the climate chamber with constant humidity for tear resistance, roughening of the surface and fibre knots.