Decoding Plastic Container Labels for Food Safety
Understanding the symbols found on plastic storage containers is vital for making informed decisions about food storage and safety. These symbols indicate the type of plastic used and provide clues about its intended purposes.
Common Plastic Identification Codes
The seven most common plastic symbols include:
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PET (Polyethylene Terephthalate):
Suitable for single-use items like water bottles, but can harbor bacteria with repeated use.*
HDPE (High-Density Polyethylene):
Durable and chemically resistant, commonly used for milk jugs and food containers.*
PVC (Polyvinyl Chloride):
Not recommended for food storage as it releases harmful chemicals.*
LDPE (Low-Density Polyethylene):
Flexible and safe for food contact, used in grocery bags and food wraps.*
PP (Polypropylene):
Microwave and dishwasher safe, suitable for yoghurt containers and medicine bottles.*
PS (Polystyrene):
Can leach styrene into food, especially when heated; not recommended for food contact.*
Other (Polycarbonate or ABS):
May contain BPA or other potentially harmful chemicals; use caution.Key Factors for Plastic Storage Selection
When choosing plastic storage containers, consider the following factors:
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Chemical resistance:
Prevents reactions that degrade the container or contaminate contents.*
Temperature tolerance:
Avoid plastics that warp or leach chemicals at high temperatures.*
Durability and flexibility:
Choose containers appropriate for the storage usage and physical demands.*
Food safety:
Opt for food-grade plastics that do not contain harmful chemicals.*
Safety implications:
Avoid plastics that easily deteriorate or leach chemicals, such as PVC and PS.For food storage, prioritize plastics like PET, HDPE, or PP. Avoid PVC and PS, especially for items involving heat exposure or consumables. By understanding plastic container labels, you can make informed choices that ensure food safety and minimize the risks associated with plastic storage.
