2. Oven heating: Put the food packed in the iron box into the oven and heat it up and down for about 10 minute.
3, frying pan heating: remove the tin box cover, put the food in the frying pan and fry for about 10 minutes.
4. Aluminum foil lunch box is a widely used tableware. The thickness of aluminum foil lunch boxes is generally between 0.03 mm and 0.20 mm, which can be divided into two types: wrinkled and non-wrinkled. Aluminum foil lunch boxes are widely used in aviation food, home cooking and large chain cake shops, and their main uses are food cooking, baking, freezing and preservation. It is usually called tin foil lunch box in China. It is produced by an automatic cold stamping process with special equipment and dies. Its thickness is uniform, the surface is smooth, there are no pinholes, no dust particles and no peculiar smell. The aluminum foil lunch box is light in weight, the product meets the national food hygiene standards, and it is easy to be recycled, and no harmful substances are produced during processing, and renewable resources are not polluted.