Disassemble the Moka pot. Rinse each part with water and use a soft cloth to remove any coffee residue. You should never use soap with an aluminum Moka pot. A dishwasher will ruin an aluminum pot. On the other hand, high-quality stainless steel Moka pots should be able to go through the dishwasher with no problem unless their handles aren’t dishwasher safe. Be sure to check the instructions that come with your stainless steel pot to make sure it’s dishwasher safe. Some owners choose to hand wash both types of Moka pots to ensure the longevity of their investment.