Prewash (Soak)-Washing Machines
Similar to the function of soaking clothes in a bucket of soapy water before manually washing them and particularly useful for stain removal. Prewash soak is a cycle, which allows you to soak the clothes for a specified time, before washing them. The prewash soak process removes bits of solid dirt from the clothes. This also enhances the detergent action before the wash cycle begins as the clothes soak the detergent.