Squeak 'n Clean is a liquid cleaner that has been formulated to prevent odors, stains and the build up of coffee oil. This blue coffee pot cleaner will save you money, by reducing cleaning time. You can see it working. Just add a few squirts of Squeak 'n Clean and the color will change from blue to green when it comes in contact with coffee or tea residue. Squeak 'n Clean is non-toxic, easy to use and leaves no aftertaste or harsh chemicals in your coffee, urns, decanters, air pots or thermal servers.