In order to extend the service life of lunch boxes and ensure safety during use, the following are some suggestions for the use and maintenance of lunch boxes:
1. Cleaning for the first use
Newly purchased lunch boxes should be thoroughly cleaned before use, especially plastic lunch boxes, which can be cleaned with warm water and detergent, then rinsed with clean water and dried before use.
2. Avoid high temperature
Plastic lunch boxes should be avoided from being heated in the microwave for a long time at high temperatures to prevent the precipitation of harmful substances. If microwave heating is required, choose a lunch box marked "microwaveable".
3. Regular cleaning
Lunch boxes should be cleaned in time after use to avoid accumulation of food residues. For stainless steel and glass lunch boxes, they can be cleaned with warm water and detergent; for bamboo and wooden lunch boxes, they should be wiped dry immediately after cleaning to avoid soaking in water for a long time.
4. Prevent odors
For lunch boxes that are prone to odors, lemon juice or baking soda water can be used to clean them, which helps to remove odors.
5. Regular inspection
Regularly check whether the sealing ring and sealing buckle of the lunch box are intact to ensure its sealing performance. For damaged or aged parts, they should be replaced or stopped in time.
6. Storage method
When the lunch box is not in use, it should be cleaned and kept dry, stored in a ventilated and dry place, away from direct sunlight and high temperature environment.

