Get rid of stains without contributing to the stain most products make on our environment. Zainz Laundry Pre Wash is concentrated, all natural and 100% biodegradable. Soaking clothes in Zainz will remove food, coffee, dirt and other stains without damaging fabric. Earth Friendly Products uses only plant-based, recycled, animal-friendly materials to make their  many useful, environmentally friendly products, which are biodegradable and non-toxic.