The soap nut shells absorb water and release the saponins which circulate as a natural surfactant in the wash water, freeing dirt, grime, and oils from clothing. We sell organic soap nuts deseeded that can be used as an environmentally friendly detergent or even as an all-purpose household cleaner. Depending on the size and efficacy of the shells, four to six shells (but possibly more for smaller pieces) will be enough for a full load. Place the soap nuts in a cotton muslin bag and tie securely shut. There will be little to no bubbles during the wash cycle.