Learn how to clean carbon and burnt-on grease from your stove and cookware. Ammonium (ammonia): the best carbon-removal cleaner! How to clean your stove, frying pan, and oven. Removing carbon and grease costs just 20 rubles and takes 5 minutes. The magic will do the rest. To be fair, I'll share three methods for removing the most stubborn carbon and burnt-on grease. Everyone will find the best one for themselves.