Though most whisks are dishwasher-safe, extra cleaning effort is required if there is crusted food on the wires of the whisk. In such a case, you’ll need to soak the whisk in a bowl of soapy water until the crusted food particles fall off. Start by adding hot water to a bowl. Add some liquid soap. Stir the mixture with your whisk. Soak the whisk wires in the soapy mixture to remove food bits. Rinse the whisk with clean water and let it dry completely before you store it.