Heating and reheating food with microwaves in a microwave only oven or one with conventional and steam heating elements as well.

The use of a table top electrical oven that uses the circulation of hot air to cook items.

The use of a conventional oven for initial cooking and reheating of precooked food. See sheet 3.011 for the hazards of food poisoning and 3.023 for heating on hobs.

The food poisoning hazards associated with use of any type of oven for initial cooking and reheating of precooked food.