Cafiza Espresso Machine Cleaner Powder is an integral part of the daily maintenance routine for espresso machines. Specifically formulated for effective use in the back flush cleaning process, Cafiza is designed to combine maximum solubility and cleaning power with easy rinsability. Cafiza is recommended for use with a wide-range of traditional espresso machines and is NSF certified for metal compatibility and safety. The product expiry is 2 years from mfg date.