Ubbi’s website advises not to even bother cleaning the pail, not even with water. This is because liquids or other chemically-based cleaning materials can create condensation that will lead to mold and rust. The Ubbi is also designed to be self-cleaning, so in theory, doesn’t even need all the harsh chemicals. The Ubbi is actually airtight, so you need to make sure it’s completely dry at all times. Your best bet when it comes to maintaining your Ubbi is to use a dry cloth to wipe the pail down.