Crock-Pot is the brand name of the original slow cooker. It uses a ceramic bowl kept at moderate heating temperatures to cook dishes over a long period of time. Crock-Pots are widely used for meals such as stews, soups and vegetable dishes. You can also use the Crock-Pot to keep meat warm and at a safe temperature. If you cooked hamburgers that aren't ready to be eaten, use your Crock-Pot to keep them heated at 140 degrees Fahrenheit or warmer.
Cook the hamburgers to the desired level of rare, medium or well-done. Internal temperatures must be 140 Fahrenheit for rare, up to 160 Fahrenheit for medium and 170 Fahrenheit for well-done.
Transfer cooked hamburgers to the Crock-Pot.
Cover the Crock-Pot with the manufacturer's supplied glass cover.
Turn your Crock-Pot on the warm setting. Crock-Pots have a warm, low and high setting. The temperature of the warm setting keeps food at the designated 140 degrees Fahrenheit. The other two settings are for cooking and result in a slow simmer of food.