STAR SAN is a high foaming, acid-based, no-rinse sanitizer that is effective and easy to use Self-foaming, which helps to penetrate cracks and crevices Odorless, flavorless, biodegradable, and environmentally friendly. Will not harm septic systems. Reduces water spotting and can be used without rinsing when used at the recommended dilution Safe for use on most brewing equipment surfaces except aluminum.