These upgraded versions of the classic CenturionPro trim machines include the Quantanium tumblers. Quantanium is a multi-coat nonstick with a unique mix of titanium particles blended into each coat. Quantanium's multi-layer internal reinforcement of titanium creates resistance to scratching, abrasion and wear that exceeds most internally re-inforced and all conventional nonstick coatings on the market. In addition, all of our Quantanium non-stick coated tumblers are made without PTFE/PFOA. Another benefit of the Quantanium tumbler is that it speeds up the harvesting process since no downtime is required to stop and clean the tumblers throughout the day. When cleaning the Quantanium tumbler, we recommend that you DO NOT pressure wash it. This will cause the coating to flake and come off. Treat the tumbler the same way you would treat a non-stick pan at home by letting it soak in warm, soapy water. After letting it soak, rinse the tumbler and then wipe it with a soft, clean cloth.