All it takes is some baking soda. Sprinkle a little baking soda onto the bottom of your stained cup or carafe, add just enough water to form a paste, and scrub. The gentle abrasion of the baking soda will get rid of stains in a matter of minutes. Then, simply rinse and wash the way you usually would.
Likewise, does vinegar remove coffee stains from glass?
Vinegar and baking soda make effective cleaners for many surfaces, and that’s no different for coffee carafes of many kinds. Baking soda is particularly effective at lifting away brown coffee stains from mugs and carafes.