Microwave to heat lunch, can you remove the lid of the lunch box?

Some people in the food production industry said that if it is to be used for microwave heating, then use polypropylene.

That is, PP) tableware is the most suitable, and it is also recognized by the industry at present, and several other types of tableware are not resistant to high temperatures, and are not suitable for microwave heating. Even if you use PP5 cutlery for heating, it is conditional, and it can only be used if it is below 130.

In addition, the weak link of microwave-heatable plastic lunch boxes is the lid, which is usually less permeable than the high-temperature lid, and the eater should first remove the lid and then put it in the microwave oven to heat. Wide-mouth containers should be used for microwave heating, because the heat generated by food heating in closed containers is not easy to dissipate, so that the pressure in the container is too high, which is easy to cause blasting accidents. Therefore, the lid should also be removed from the general ceramic and glass lunch boxes.

I warm lunch in the microwave, and the lid of the lunch box can be removed. Just drizzle a little boiling water on the surface of the rice before heating. Otherwise, it will be dry and hard and not refreshing. In addition, control the time well, after all, it is heating, not cooking.

If your lunch box is not very well sealed, you don't need to remove it, and the most feared thing to heat things in the microwave is an airtight container.

Don't take it off, after taking it out, the hot meal will be very dry.

How to heat rice in the microwave:

Spray some water on the staple food. If you use high heat for hot rice, you can generally turn a bowl of rice for 2-3 minutes. If it is medium heat, a full lunch box is generally heated for about 5 minutes.

The hot rice must be covered so that it is soft and delicious when it comes out. In addition, when heating pasta such as steamed buns and cakes, it is best to spray some water and heat it for 1-2 minutes so that it will not be dry and hard.

Want. Because most lunch box lids are made of plastic, high-temperature heating can easily deform the plastic; The material of the lid of the lunch box for microwave oven is relatively safe, but if you do not remove the lid, the lunch box will expand by heat, and it will explode in serious cases. If you are worried about the loss of moisture in the meal, which will cause the taste to deteriorate, it is recommended to wrap the lunch box in plastic wrap before heating.

Introduction: 1. The heating time should not be too long. Too long can make the food hard and even produce toxins. The time should be adjusted according to the type of food.

2. Ordinary plastic containers, plastic bags, etc. cannot be heated in the microwave. It can be easily deformed and may also release toxic substances.

3. Avoid heating fried food. The high temperature will cause the oil to splash, which can create an open flame and cause a fire. If it accidentally causes the furnace **, do not open the door immediately, turn off the power first, and then open the door after the fire is extinguished.

4. Prohibit metal utensils. Microwave ovens work by using electromagnetic waves to emit energy to heat food, while metal blocks energy conduction, making it impossible to heat food in metal utensils.

Glass bowls, special plastic materials, and ceramic containers can be put into the lunch boxMicrowave.

Not all lunch boxes can be put into the microwave oven to heat, you can observe, there is a corresponding number at the bottom of it or in the lid, if it is No. 5, its heat resistance is better, using PP polyethylene.

The material is more suitable for microwave heating.

Most of the plastic utensils that can be heated in the microwave are made of No. 5 PP, and if they are No. 3 or No. 6, they cannot be heated in the microwave. In general, plastic lunch boxes for packing are safe.

Only plastic lunch boxes marked with the words microwave oven can be heated, and ordinary plastic lunch boxes cannot be heated. Because the material of plastic lunch boxes that can be heated in the microwave oven is generally polypropylene plastic.

Material, this material can generally withstand more than two high temperatures, so it can be placed in the microwave oven for heating, and the material of ordinary plastic lunch boxes generally belongs to PC material, this material is generally not resistant to high temperatures, easy to deform, discoloration, so it is not suitable for heating in the microwave oven.

Precautions for microwaving food:

1. Do not put food in sealed bottles and canned food in the microwave oven (e.g. sealed glass bottles and baby bottles). Feeding bottles and baby food cans should be stirred or shaken, and the temperature of the food in the bottles should be checked before feeding to avoid burns.

2. Do not use the microwave oven to heat fried food.

3. Do not heat raw eggs in the shell.

and eggs with a film, otherwise it will cause **.

4. Potatoes, apples, egg yolks, chestnuts, red sausages.

Foods with skin must be pierced with a fork or knife before cooking to prevent scorching and breaking.

Depending on the situation, the lid of an ordinary lunch box is a plastic product, and it is easy to deform the plastic when heated at high temperature, and it is unhealthy to bury hail, so it cannot be heated in the microwave; The lid material of the microwave oven lunch box is relatively safe, and it can be heated in the microwave. When using a microwave oven to heat meals, be careful not to use microwave-specific utensils instead of metal utensils. <

Depending on the situation, the lid of an ordinary lunch box is a plastic product, and high-temperature heating is easy to deform the plastic, and it is unhealthy, so it cannot be heated in the microwave; The lid material of the microwave oven lunch box is relatively safe, and it can be heated in the microwave. When using a microwave oven to heat meals, be careful not to use microwave-specific utensils instead of metal utensils.

The glass lunch box should be heated in the microwave oven to open the lid, otherwise the closed glass lunch box will be due to the heating of the food in the lunch box and the swelling gas will have nowhere to excrete, and the lunch box will explode or deform, if you really want to close the lid, you can use the plastic lid to heat.

Precautions for microwave ovens.

If there is no heated food in the oven of the microwave oven, it cannot be burned in the air, otherwise, the microwave will have nowhere to absorb and the magnetron will be damaged.

Do not use metal utensils for heating food in the microwave oven, otherwise the metal utensils will reflect microwaves after being energized, interfere with the normal operation of the oven, produce high-frequency and short waves, and damage the microwave oven.

There should be no magnetic objects near the microwave oven, otherwise it will interfere with the uniformity of the microwave magnetism, reduce the working efficiency of the magnetron, and open and close the furnace door lightly, so as not to damage the sealing device due to excessive force. Content.

The glass lunch box is microwaved and the lid should be opened. When heating rice in the microwave, cover the lid and heat it, which will make the heat generated by the food heating not easy to dissipate, and the internal pressure of the container will increase, resulting in instability, which may cause the lunch box to be deformed or even **. It is recommended to use a dedicated microwave oven for heated lunch boxes, avoid metal utensils or completely enclosed containers.

The glass lunch box is microwaved and the lid should be opened. When heating rice in the microwave, cover the lid and heat it, which will make the heat generated by food heating not easy to dissipate, and the internal pressure of the container will increase, resulting in instability, which may cause the deformation of the lunch box or even **. It is recommended to use a dedicated micro-nano oven lunch box, avoid metal utensils or completely enclosed containers.

Microwave ovens use magnetrons inside.

Converts electrical energy into microwaves, polar molecules in food when microwaves are absorbed by food.

That is, it is attracted to oscillate rapidly at a rate of 2.4 billion and 50 million times per second, and the macro manifestation of this ** is that the food is heated.