Puro Caff， 20oz<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Caff used to back flush espresso machines or to clean airpots， urns， and brewers</li><li>Capacity to hold 20-ounce;biodegradable</li><li>Removes the buildup of oily coffee residue from the screens， valves， and tubes of brewing groups</li><li>NSF certified and OMRI for metal compatibility and safety</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Yp-1%2Bs7aL.jpg" noproxy>