The logo at the bottom of the bento box usually includes important information such as the type, purpose, and safety of the plastic. These signs generally use triangular symbols with numerical or letter codes inside to distinguish different types of plastic materials and their characteristics. The following is a brief explanation of the meanings of common symbols:
1. (PET): commonly used for beverage bottles, not resistant to high temperatures and not suitable for heating.
2. (HDPE): Commonly used in cleaning products, some are heat-resistant, but not all are suitable for heating.
3. (PVC): Toxic, not suitable for food containers, avoid use.
4. (LDPE): cling film, etc., not resistant to high temperatures, not suitable for heating.
5. (PP): The only plastic that can be safely heated, commonly used for microwave heating bento boxes.
6. (PS): Fast food boxes are commonly used, not resistant to high temperatures, and cannot be microwave heated.
7. (PC): Multiple ingredients mixed, may contain bisphenol A, use with caution.
Other signs
Production License: Indicates that the product has passed safety certification.
Cup and fork: can be used to hold food and drinks.
Snowflakes: may indicate resistance to low temperature refrigeration.
Three arcs: sometimes indicating that it can be heated, but please refer to the product instructions for details.
Matters Needing Attention
Before use, check the bottom logo to understand the material and usage restrictions.
Avoid placing non heat-resistant lunch boxes in heating devices such as microwaves.
Regularly replace old or damaged bento boxes.
When selecting and using plastic lunch boxes, carefully check the markings and instructions at the bottom, choose products that meet food safety standards, and follow the correct usage methods.
