Since 1936 Urnex has been a staple of the coffee industry with its cleaning products used, loved and recommended by coffee shops, baristas and coffee connoisseurs. Urnex’s Single Serve Coffee Machine Cleaning Capsules have been developed for K-Cup users so they can enjoy better tasting coffee from a clean machine. The capsules remove bitter-tasting coffee oils and residue from the brew chamber of your K-Cup machine, helping your cup of coffee brew faster and taste better. Simple to use, just insert a cleaning capsule into the chamber, brew the largest cup size twice, remove the cleaning cup from the chamber and perform two brewing cycles just with water to ensure no cleaning solution remains in the coffee maker. This product rinses away completely and is odor free. For Use on K-Cup Single Cup Brewers - Step 1: Cleaning Cup - 1. Place cleaning cup into brewer2. Brew largest cup size twice3. Remove cleaning cup from brewer4. Brew twice to rinse