Detergent is an essential decontamination expert at home. First, put a small amount of detergent and soak it in warm water for 11 minutes, drop a few drops on the sealing ring on the lunch box, and then brush it repeatedly with a brush and wipe it back and forth with a clean cloth. Bleaching powder, diluted bleaching powder, should be diluted according to the proportion required in the manual when using, then clean the sealing ring and wipe it repeatedly with a clean cloth. Edible alkali has a strong cleaning power on all kinds of stains, and the black spots on the sealing ring of the lunch box cover can also be easily removed. Just dilute it with appropriate amount of edible water, and then pour it on the black spots for wetting and brushing.

potatoes are rich in starch, which has the function of adsorption. Specific practice: Mash the cooked potatoes into paste, evenly spread them on the black spots on the sealing ring of the lunch box cover, and wash them off after half an hour, which can be easily removed. First, take off the sealing ring, soak it in the water with detergent for several minutes, then brush it evenly with a brush on a flat surface, then rinse it, and soak it in the water with 84 disinfectant for several minutes, which is clean and disinfected, and it is the best of both worlds. There is also a kind called decontamination net, the effect will be more outstanding, spray it evenly, wait a moment, the water is both clean and the price is slightly higher.

when removing the mildew on the sealing ring, you can use daily vinegar. When cleaning, not only the moldy sealing ring can be cleaned, but also the interior of mechanical equipment can be cleaned, thus achieving the effects of removing mildew spots and disinfection and sterilization. Toothpaste is widely used to clean teeth, so the cleaning intensity is better. Specific practice: squeeze some toothpaste on the sealing ring on the lunch box, and then brush it with a brush. If you don't like the smell of toothpaste, rinse it several times.

when the temperature reaches 65℃, harmful substances in disposable foamed plastic tableware will penetrate into food, which will cause damage to human liver, kidney and central nervous system. Generally speaking, the life of plastic products is only one year. So the lunch box has been in service for a long time and needs to be replaced. It is recommended to buy a glass crisper, which is healthier.