This liquid coffee pot cleaner effectively eliminates unsightly mineral buildup and oil deposits so they don’t affect the flavor of your coffee. NSF A3. A quick and easy way to keep coffee pots fresh and odor free. GROUNDS KEEPER cleans and maintains all major brand makes and model coffee brewers to include commercial and home use. A quick and easy way to keep coffee pots fresh and odor free. GROUNDS KEEPER cleans and maintains all major brand makes and model coffee brewers to include commercial and home use. Removes Oil Residue & Mineral Build-Up. Odorless. Descales to Maintain Optimum Brewing Time. Available in Pints (12 x 16 oz bottles).