How to choose non-toxic and durable Plastic Food Containers?

In daily life and food storage, Plastic Food Containers are popular because of their lightness, durability and affordability. However, not all Plastic Food Containers are suitable for storing food. Some inferior products may release harmful chemicals, which may even harm health in long-term use.
1. Look for food-grade safety certification
When choosing a plastic container, you should first check whether it is marked with "food grade" certification. Common international certifications include:
US FDA certification: Ensure that the material meets food contact safety standards.
EU LFGB certification: Strictly limit the migration of harmful substances in plastics.
China GB 4806.1 standard: Mandatory safety regulations for plastic products for food contact.
In addition, you can check the digital number in the triangular recycling mark on the bottom of the container:
PP (polypropylene, number 5): High temperature resistant (above 120°C), suitable for microwave heating, and an ideal choice for food containers.
Tritan (unnumbered): Does not contain bisphenol A (BPA), is resistant to falling and heat, and is often used in high-end water cups and baby products.
Avoid PC (polycarbonate, No. 7): It may release bisphenol A, and the risk is higher at high temperatures.
2. Pay attention to temperature resistance and applicable scenarios
The temperature resistance of different plastics varies significantly:
Refrigerated or room temperature storage: HDPE (No. 2) or PET (No. 1) can meet the needs.
Microwave heating or steaming: Prefer PP or containers marked "microwave suitable" to avoid deformation or release of harmful substances due to high temperature.
3. Structural design affects durability
Sealing: Choose containers with silicone sealing rings to prevent leakage and food spoilage.
Fall resistance: Tritan or thickened PP materials are more resistant to falling and suitable for outdoor or children's use.
Easy to clean: The smooth inner wall is not easy to leave stains, which can reduce bacterial growth.
4. Be wary of "unlabeled" three-no products
Some cheap plastic containers do not indicate the material or certification, and may use recycled materials or additives (such as phthalates). The risk is higher when exposed to grease or high temperature for a long time. It is recommended to purchase branded products through formal channels, such as Lock&Lock, Tupperware, etc.
Experts remind: Proper use prolongs life
Even if you choose high-quality containers, you should also pay attention to:
Avoid storing strong acid, strong alkali or high-fat foods for a long time.
Remove the lid when microwaving to prevent the sealing ring from deforming.
Regularly check for aging, scratches or yellowing, and replace them in time.