1Stainless Steel: Made from 316 stainless steel, our coffee filters are highly durable, high temperature resistant, anticorrosion, and perfectly safe to use for many years. 2Puck Screen: The reusable coffee filter offers improved performance over single layer screens. Extraction is smoother, more even, and better balanced. 3Better Coffee Taste: It even out the flow of water while helping to hold the puck solidly together to prevent channeling and spurts from occurring. 4Easy To Clean: Easily rinse with running water, which can remove any grounds from within. Please, clean it after enjoying your coffee asap to avoid coffee grounds that spend more time to clean after drying. 5Coffee Tool: Double layer 150um filter holes, exquisite disc sieve, suitable for a variety of coffee machine levers. This puck screen is the perfect addition to coffee brew. Most popular coffee machine accessories tools.