These air pots are in the back of the coffee shop, waiting to be cleaned. It is important to always remember to clean your air pots in between service. Just because you are using the same coffee in it, cleaning out the air pot helps to keep the pot working at its prime and prevents bacteria from forming in the areas where bacteria can thrive. Always have several air pots available to rotate. That way, when one is ready to be cleaned, you can bring out a clean one for use in the coffee shop.