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Be it a food-grade plastic container or a food storage container, or a common storage box, plastic products have somehow or other touched all of our lives to date. But as the trend of health and environment emerges, BPA(bisphenol A) comes to the surface.
Many consumers ask when selecting plastic products: Which plastic materials are BPA-free? This article will provide an overview of BPA-related knowledge and a detailed analysis of whether common plastic materials contain BPA, including an introduction to a reputable plastic products manufacturer—Xinghui—which may add an extra layer of assurance to your choices.
What is BPA?
A chemical compound, Bisphenol A (BPA), is found in polycarbonate plastics and epoxy resins. It also provides flexibility and transparency to plastics, so liquid in nature, it has become a big part of the make-up, from sports water bottles to the coatings on the inside of many food and beverage cans.
Some studies have found that BPA can leach into food and beverages when the plastic lined with BPA is stressed, heated, or comes in contact with acidic or alkaline substances. If ingested, it has the potential to disrupt the hormone system and result in adverse health effects. This is why many countries and areas are now reconsidering the use of BPA in food contact materials.
Common Plastic Materials and Their Relationship with BPA
At the bottom of plastic products, there is typically a triangular “recycling symbol” with numbers 1 to 7 inside, representing different plastic materials. Let’s analyze which plastics are BPA-free:
1. PET (Polyethylene Terephthalate)
Typically found in mineral water bottles, beverage bottles, and some food packaging.
BPA-free but should only be used once, and is not suitable for hot water/high temperature. Reheating for continuous multiple uses.
2. HDPE (High-Density Polyethylene)
Used in milk bottles, detergent bottles, and some food storage containers.
BPA-free, with good acid and alkali resistance and stability, making it one of the safer materials.
3. LDPE (Low-Density Polyethylene)
Commonly used in cling film and squeeze bottles.
BPA-free, highly flexible, but has relatively poor heat resistance and is not suitable for high-temperature use.
4. PP (Polypropylene)
Widely used in plastic lunch boxes, takeout containers, microwave-safe containers, and storage boxes.
BPA-free and has good heat resistance, can be used in microwaves or dishwashers, and is an optimal material for food contact products.
5.PS (Polystyrene)
Commonly found in plastic tableware and takeout containers.
Does not contain BPA, but has poor heat resistance and may release other harmful substances at high temperatures, so repeated heating is not recommended.
6. Others (including polycarbonate PC)
These include several plastics, like PC, which is the primary source of BPA.
Often found in baby bottles, water cups, and some storage containers. Use with caution if the product is not labeled “BPA-free”.
How to choose BPA-free plastic products?
1. Check the material labels
1 (PET), #2 (HDPE), #4 (LDPE), and #5 (PP) are all BPA-free, safe materials.
Avoid purchasing food contact products made from #7 polycarbonate (PC) unless they are explicitly labeled as “BPA-free.”
2. Avoid improper use at high temperatures
Even BPA-free plastics should be avoided in high-temperature or strong acid/alkali environments, such as using plastic containers for prolonged steaming or boiling of food.
3. Choose reputable manufacturers
Major brands and professional manufacturers strictly adhere to food safety standards and clearly label their products as “BPA-free.”
Xinghui Plasticware — Premium Plastic Products Manufacturer
As a professional plastic products manufacturer, Xinghui Plasticware is committed to providing safe, eco-friendly, and durable plastic products to global customers. Our main products include:
Plastic food containers
Plastic food storage containers
Plastic kitchen utensils
Plastic storage boxes
Plastic drinking utensils
Our products are made from BPA-free free like #5 PP and #2 HDPE and have to go through rigorous tests to ensure the quality of environmental & food safety every time before they are shipped. Household uses or catering industry whether you are a novice, professional, or household user, Xinghui plasticware is always your best partner.
Knowing the #1 goal of picking BPA-free materials is the well-being of your family. As a rule of thumb, materials such as PET, HDPE, and PP are safer, while you have to be more careful with polycarbonate plastic, which contains BPA.
Not only will Xinghui plasticware continue to lead in making safer and biodegradable plastic products, but they will also scale up the green upgrading of plastic products that focus on consumers with a healthier experience. Don’t hesitate if you have any collaboration requirements; just drop us a message right away!
