You must bring food in a lunch box. If used in the company's microwave oven, it is equivalent to microwave oven equipment, so there are special requirements for materials. The utensils used in microwave ovens should be made of nonmetallic materials, and never use metal utensils. Microwave oven appliances should meet the following conditions: good microwave transmittance, good heat resistance and good cold and hot shock resistance; Meet the food hygiene requirements (including the hygiene requirements under high temperature conditions). The bottom of plastic lunch box is made of PP (polymer polypropylene), which is the most common microwave utensil at present. Mainly consider the high temperature resistance and whether the toxic substances volatilize after heating. If you can't judge the hygiene level of plastic lunch boxes, you can also use new glass lunch boxes or ceramic lunch boxes. Glass lunch boxes can be used in 1. Glass cookware and ceramic cookware. That is, ordinary ceramic bowls, plates, woks and so on. Can be used. However, containers with metal decorations may spark or fall off, so please do not use them. 2. Heat-resistant plastic utensils. All heat-resistant plastic utensils are acceptable. But please use heat-resistant glass or ceramic utensils for oily food. 3. Plastic wrap and heat-resistant pe bag. When cooking, it can be used to cover vegetables or cover containers, but it is not allowed to directly wrap meat and fried food. Unusable utensils 1. Metal utensils. Aluminum pot, enamel pot, stainless steel pot and other metal containers can't be penetrated by microwaves, so they will collide with the inner wall of the furnace when they touch the metal, so they can't be used. Note that using metal utensils is also easy to damage the microwave oven. 2. lacquerware. The paint on the lacquerware may peel off and melt after being heated, resulting in harmful substances and cracks in the container. Please don't use it. 3. Grass, willow, wood, bamboo and paper products. These containers can be used if heated for a short time, but they may burn if heated for a long time. Please don't use them. Precautions for microwave heating Next, let's look at the heating method. General companies will provide electric cookers or microwave ovens for employees to use when heating. I believe everyone knows the method of steaming lunch in an electric steamer: heating in water to avoid empty burning, placing metal containers and avoiding using plastic utensils. But it takes a long time to heat lunch. Compared with the electric steamer, the microwave oven is the elite of the new generation of electrical appliances, with short heating time and high speed, but there are many places to pay attention to in use. Pay attention to the way of microwave heating. Method 1. Use special microwave appliances. Don't put metal containers in the heater unless you want to watch the fireworks show. 2. The heating container should not be sealed, and there should be air holes, unless you want to watch the blasting show. Similarly, don't put the whole shell-less egg in the microwave unless you want to watch the omelet show. 4. For liquid heating, it is best to put a nonmetallic stirring rod or spoon in the container, unless you want to watch the hot water splash show. Write at the end: microwave heating food will lose some nutrients and water. Microwave ovens in public places such as companies are mostly low-end and have no professional steaming function. Some foods taste dry and hard when heated. Not only should we correctly choose what rice to bring, but also pay attention to the heating method. Compared with open fire cooking, the advantages of microwave heating are obvious, convenient and fast, and less nutrient loss, so everyone should pay attention to safety when using microwave ovens.