What temperature should the wash water be?

Saponin (the natural soap compound in soapnuts) is only released in higher temperature water. Therefore, we recommend using warm (or hot) water to wash your laundry. To wash your laundry with cold water, just whip up a batch of Soapnut Soak, and use it in place of commercial detergents.

Can I use soapnuts in a cold water wash?

Absolutely! Just whip up some Soapnut Soak and use it for cold water and delicate washes.