URNEX CAFIZA2 Coffee Equipment Cleaning Powder effectively removes coffee residue and oils in traditional espresso machine group heads, valves and lines. Specifically formulated for effective use in the back flush cleaning process. URNEX CAFIZA2 is carefully formulated for controlled solubility, safe and powerful cleaning, and easy rinsing. It can also be used to clean brewers and servers. URNEX CAFIZA2 Coffee Equipment Cleaning Powder is NSF certified for metal compatibility and safety.URNEX has been developing speciality cleaning products for coffee and espresso equipment since 1936. Through an intimate understanding of coffee equipment and the requirements of customers, URNEX products are based on proprietary formulas offering effective solutions for every brewing need. URNEX products represent the highest standards of quality, consistency and effectiveness worldwide.