Running hard water through your coffee equipment can lead to mineral buildup and calcification on your heating elements. If you’re looking to get the most out of your commercial coffee maker, then it’s important to make sure it’s properly cleaned. Cleaning your coffee maker will not only prolong its life span, but it will also improve the taste of your coffee. You should be cleaning and deliming your machine at least once every six months, however if the water you use is extremely hard, you may need to clean it every month.