Can the glass covering the glass lunch box be heated at the microwave oven?

It can be placed in a microwave oven together, but it is recommended that you leave a small gap, because the principle of microwave heating is the rapid friction of water molecules, so that the food will be heated quickly. The cover is easily opened by the rapidly expanding water vapor in the box.

The fresh -keeping box is divided into three types:

1. It is a plastic fresh-keeping box: made of resin material, generally temperature resistance range: maximum temperature 120 ° C, minimum temperature -20 ° C,

2. It is a tempered glass preservation box: ordinary glass reinforcement.

3. It is a heat -resistant glass preservation box, which is made of high borosilica glass. It is also recognized as a good fresh -keeping box. As consumers attach more attention to health, people pay more attention to whether the materials used in the preservation box itself are healthy.

Precautions for fresh -keeping boxes

1. Plastic fresh -keeping boxes cannot be put in microwave oven and oven, because plastic can produce harmful substances to the human body at high temperature. If a microwave oven is often used, it is best to use a fresh -keeping box for polycarbonate (PC) materials.

If you use a high temperature of about 70 degrees to continuously wash, please do not exceed 20 to 30 minutes. The high heat of the ordinary dishwasher is at the bottom. Relatively speaking, the upper part is indirectly heat transfer, so it is better to clean it on the upper part of the dishwasher.

2. Different foods are stored differently. Do not rely on the sealing capacity of fresh -keeping boxes. You should eat it as soon as possible. P.P (polypropylene) fresh -keeping box can be heated for a short time when used in a microwave oven, but it cannot be used as a vegetable container used in the microwave oven.

3. When putting in a microwave oven, you must first release the lid junction device and then use it. If you use it after locking the lid, the fresh -keeping box will deform or burst due to pressure. When used in the microwave oven, if there are more oils and sugar in the food, the fresh -keeping box will be deformed when the temperature rises rapidly.

4. When cleaning the fresh -keeping box, use a softer sponge. Do not use a hard brush bowl to avoid scratching scratches and make the fresh -keeping box discolored. When cleaning the silicon resin pad between the lid and the container, please do not hold it hard, otherwise it will break or become longer.

5. Hot food will swell the air and reduce the sealing performance of the fresh -keeping box. Therefore, it should be stored after the food becomes cold. The carbonated beverages (soda, cola, etc.) can lose the sealing capacity of the fresh -keeping box. Do not store it in the fresh -keeping box.