To clean the biēm, you open the top and fill with water and a drop of dish soap. Then you press and hold the on/off button for two seconds and it will enter cleaning mode. For the next 10 minutes, the unit heats up to 155 degrees. Each part that comes in contact with the butter is heated, all the way up to the spray opening itself. After 10 minutes, you simply activate the spray to flush the soap and water through the spray opening, empty any remaining soapy water from the main chamber, flush the spray again with clean water, and you are ready to go.