About Soak Show your skin, laundry and planet some love by washing even your most delicate garments with this rinse-free laundry detergent. It is plant-derived and made of renewable, biodegradable, dye-free and phosphate-free components. Hand-wash instructions: Combine 1 tsp of Soak laundry detergent in 1-gallon cool water. Soak for 15 minutes. Gently squeeze. No need to rinse. Lay knits flat to dry. Wash sets together (ex. lingerie). Test fabric for colour-fastness. Compatible with HE machines.