Things You'll Need
Oysters are mollusks, belonging to the same family as clams and scallops. While rough to the touch on the outside, opening the shell reveals a soft flesh that is a delicacy for some. Oysters are often enjoyed raw, but there are certain dishes such as oysters Rockefeller and oysters au gratin that require cooking. If you made a dish that involved cooking the oysters, reheating them is a simple task.
Use a microwave or conventional oven. A microwave is the fastest option, but an oven is less-likely to over-cook the item.
Place the oysters in an appropriate dish or pan for the microwave or oven. Don't use metal pans in the microwave as this can cause a fire.
Set your oven to 350 degrees. Once the oven is preheated, cook the oysters for five minutes. After five minutes, use a food thermometer to check the temperature. The FDA recommends reheating all foods to an internal temperature of at least 165 degrees. If the thermometer does not indicate the food is hot enough, let the oysters cook for several more minutes and re-check. Repeat the process until you receive a proper temperature reading.
Place the oysters in the microwave and set the temperature on high for one to three minutes depending on the quantity. Large amounts of oysters will need more time. Check the temperature with a food thermometer to ensure a reading of 165 degrees.
Consume leftover oysters as soon as possible, preferably the next day. Seafood is prone to bacteria growth and contamination, and eating oysters more than several days old can cause potential illness.