Use Care 1 Place thermometer in oven nearest to the food being baked. Thermometer is designed to hang from rack or can be set on rack. 2 Periodically check the temperature reading and adjust oven setting if necessary. Caution Selfcleaning ovens operate at very high temperatures. Always remove oven thermometer before cleaning the oven. Do not immerse in water or clean in dishwasher. To clean, wipe with a damp cloth.