Cleancaf Coffeemaker Cleaner eliminates residual coffee oils and buildup that can turn rancid to prevent bitter tasting coffee Proudly made in America; odorless and non toxic; contains 3 single-use treatments (3-month supply) Gently removes lime scale and oil residue buildup in automatic coffee makers and espresso machines; brew faster, better-tasting coffee Simple, effective and easy to use; cuts buildup without harsh chemicals or odors; non-toxic. No Vinegar odor! Using Cheancaf is as easy as brewing a pot of coffee; made in the USA