A detergent containing enzymes is most effective in removing grass and other organic stains. Popular detergents with enzymes for cleaning power are Seventh Generation Inc., Gain, Tide, Ecolab and Drive.
Detergents containing enzymes are also effective in removing blood, bodily waste and fluid stains, food-based grease and oil, milk and egg-based stains and chocolate.The best strategy for heavy stains is presoaking or pretreating the fabric with the detergent, then laundering the item as usual. Enzymes are a type of protein that assists other chemical reactions. Common enzymes used in detergent are amylase, lipase, protease and cellulase. Each type is effective against specific stains.