Experience the rich flavors of coffee with Chemex Unbleached Natural Coffee Filters. CHEMEX paper filters are based on laboratory grade paper and designed specifically to filter out impurities, unhealthy and bitter elements from the coffee. Each filter is 20-30% thicker than the competition, ensuring the bitter elements, oils, and grounds stay out of your cup. These filters are designed to optimize air flow and enhance flavor. CHEMEX filters are able to brew coffee as strong as you’d like, without acidity and bitterness. In your cup you will find only the caffeine and flavor from the desirable aromatic oils of the coffee beans. Our specialized paper works well with light, medium and dark roasts- even tea! Allowing you to make the perfect and most pure cup every time! Chemex Natural Coffee Filters fit perfectly in all Chemex coffeemakers except for the Three cup Class Series (CM-1C), Three cup Handblown Series (CM-1), Three cup Glass Handle Series (CM-1GH), and the Funnex (CM-FNX). Simply place a filter in your Chemex, rinse with hot water, add ground coffee, and pour hot water to brew. Ideal for both single servings and larger batches, these filters are perfect for coffee enthusiasts and home baristas alike!