Your denim doesn’t need to be washed after each wear.
First, to reduce your own environmental impact, try to air-dry your jeans outside and see if it’s enough. However, if you still have to wash your denim, you can reduce your impact by following the instructions below:

• Fill up your washing machine: washing a full load results in less friction between the clothes, which means fewer fibers are released.
• Use washing liquid instead of powder: the ‘scrub’ function of the grains of powder results in a higher proportion of fiber loss than when liquid is used.
• Use a fabric softener: some ingredients in fabric softeners reduce less friction between fibers, which reduces fiber loss.
• Wash at a low temperature: when clothes are washed at a high temperature some fabrics are damaged, which leads to more fibers being released.
• Avoid long wash programs: long wash programs cause more friction between fabrics, which results in more fibers tearing.
• dry spin clothes at low revolution levels: higher revolutions increase the friction between the clothes, resulting in a higher chance of fibers loosening.