A cleaner coffee maker is a simple soak away. Just add 1/4 cup ARM & HAMMER™ Baking Soda to one quart of warm water to clean coffee makers, mugs and more. For really tough stains, add dishwasher detergent and soak them in this solution overnight. Then simply sprinkle ARM & HAMMER™ Baking Soda on a damp sponge and gently wipe away stains. Rinse thoroughly.ARM & HAMMER™ Baking Soda is an effective yet gentle cleaner and deodorizer. A smart alternative to using harsh chemicals, it's safe for use around food, pets and kids.