They contain large quantities of saponin in their shells. It acts as a natural, gentle detergent when it comes into contact with water. Without any chemicals, fragrances or dyes, they are safe and gentle for handwashing delicates. They are also tough enough for regular laundry. They will leave your clothes soft, clean and fragrance free. No need to use of fabric softeners.
For Laundry Detergent, you can use them in one of two ways:
1. Toss 4 or 5 Nuts in a small muslin bag (provided with most orders) and throw it in with your laundry. (Make sure that you take them out before putting your clothes in the dryer). The nuts will do 4 or 5 loads.
2. Boil 15-18 whole Soap Nuts in 6 cups (1.5 quart) of water for 30 minutes. The liquid you have is now a concentrated, chemical free detergent. The leftover shells can be placed in your compost. Use 3 Tbsp or 45 ml of this detergent with each load of laundry. This allows you to do approximately 60 loads of laundry. Not bad for under $10!
