1. Remove the lunch box cover when heating
For some microwave oven lunch boxes, the box body is made of No. 5 PP, but the box cover is made of No. 4 PE, which cannot withstand high temperatures. So remember to remove the cover before putting it into the microwave oven.
2. Timely replace
The service life of the lunch box is generally 3-5 years, but it should be replaced immediately in case of discoloration, brittleness and yellowing.
3. Clean in place
In order to ensure the tightness of some lunch boxes, a sealing ring is installed on the lid. However, if food residue seeps into the sealing ring, it becomes a “blessed place” for mold.
It is recommended to clean the seal ring and its groove every time it is cleaned, and then install it back on the cover after it is dried.
4. Do not put food that will accelerate the aging of the lunch box
If alcohol, carbonated drinks, vinegar and other acidic substances are stored in lunch boxes for a long time, it is easy to accelerate aging. Therefore, if you have homemade vinegar soaked peanuts, red bayberry wine, etc., remember not to put them in plastic fresh-keeping boxes, and you might as well store them in glassware.
5. It is not recommended to reuse disposable plastic takeout boxes
Nowadays, many takeout boxes are of good quality and marked with safe No. 5 PP material. Some people can’t help but wash them and store them at home for reuse.
But in fact, this is wrong.
Due to cost control and other reasons, there is usually no very high safety standard for disposable lunch boxes, which are made to contain food with high temperature and possible oil for once. It is safe to use under this condition. However, if it is used more often, its stability will be destroyed, and the harmful substances in it will precipitate, which may affect health in the long run~
Post time: Nov-11-2022