Small Package. Big Results. Opti-Pak Detergent is an extra heavy duty multi-temperature liquid machine warewashing detergent that assures instant mixing, consistent results, automatic dispensing ease, and economical cost effectiveness. It is effective on a wide range of soils and exhibits outstanding performance in water conditioning, particularly on carbonate alkalinity and other high T.D.S. applications. This detergent is non-chlorinated, non-foaming and works in a wide range of water conditions.