Star San Saniclean is an acid rinse, much like Star San, but low-foaming- this makes it great for CIP or pump applications as well as part soaking. Saniclean does not require a rinse when used at or below 200 ppm. Great for spray bottles, circulation sanitizing with a pump, or other applications where lots of foam is undesirable. Can also be used for soaking use 2 oz Saniclean per 4 gallons of water, allow hand-washed parts to soak for 5 minutes, then rinse with potable water.