Omar Khalid
Food grade plastic containers are plastic materials deemed safe for use with food and drinks. They are designated as materials approved for contact with food and are considered non-toxic and suitable for food interaction. However, this does not mean they are safe for all uses, for example, a food-grade plastic container may be safe for storing dry pasta but could release harmful chemicals if used to store hot soup. Food-grade plastic containers are regulated by higher standards than plastic used for other purposes and must meet strict requirements to be considered food-safe.
| Characteristics | Values |
|---|---|
| Definition | Plastic material deemed safe for use with foods |
| Approval | FDA-approved |
| Safety | Non-toxic, no chemical leaching, temperature resilient |
| Intended use | Food storage, food packaging, food transportation, food processing equipment |
| Recyclability | Recyclable, but must be examined by the FDA before being used again for food-contact products |
| Examples | LDPE, HDPE, PET, PP, PVC, PS, PC |
| Avoiding BPA | Choose "BPA-free" products, avoid recycling symbols 3 and 7 |
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What You'll Learn
Food-grade plastic is safe for food use
Food-grade plastic is a material that has been deemed safe for use with food. It is regulated by higher standards than plastic used for other purposes. Food-grade plastic must be produced using safe materials in a safe environment.
To be considered food-grade, plastic must meet strict requirements. It must be protective, durable, and chemically safe. This means that it should act as a defence against moisture or contamination without breaking down, protect food items during manufacturing, packaging, storage, and transportation, and not contaminate food through "leeching", where chemicals seep into the food and affect its taste or cause adverse health effects.
Food-grade plastic is only considered food-safe if it is used as intended. For example, a plastic container deemed food-grade might be safe for storing dry pasta but could release harmful chemicals if used to store hot soup. Heat can break down the chemical bonds of plastic, causing toxins to contaminate the food and making it unsafe to consume.
Food-grade plastic is also used in the packaging and shipping of harvested crops, pharmaceutical products, and medical products such as surgical containers and medicine transporting containers.
Food-safe materials are a step beyond food-grade. Food-safe materials are not only safe for food contact but also pass stringent tests for temperature resilience and chemical leaching.
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Food-safe plastic is a step beyond food-grade
Food-grade plastic is a popular choice for food processing, packaging, and storage. This is because it is sturdy, easy to clean, and sanitise. Food-grade plastic is deemed non-toxic and suitable for food interaction. However, it is not necessarily safe for all uses. For example, a food-grade plastic container might be safe for storing dry pasta but could release harmful chemicals if used to store hot soup or placed in a microwave.
Food-safe plastic, on the other hand, is a step beyond food-grade. Food-safe materials are not only safe for food contact but also pass stringent tests for temperature resilience and chemical leaching. Food-safe plastic is used as intended to prevent contamination or health risks. For example, a plastic storage container that is specifically manufactured for dry cereal cannot be used to store hot soup. This is because heat can break down the chemical bonds of the plastic, causing toxins to contaminate the food and making it unsafe to consume.
To ensure food safety, it is crucial to understand the distinction between food-grade and food-safe plastics. Food-grade plastics are generally better for long-term storage, while food-safe plastics are more suitable for direct food contact and can withstand high temperatures and chemical leaching. Food-safe materials are thoroughly reviewed and studied by the FDA's Division of Food Contact Notifications office, which is made up of scientists, chemists, and toxicologists. These experts perform tests and studies to ensure that food-contact substances meet strict guidelines for temperature resilience, types of food, and cleaning methods.
When selecting food-safe plastics, it is important to look for recycling symbols with numbers 1, 2, 4, and 5, as these are generally safe. Numbers 3, 6, and 7 should be avoided, as they can pose health risks due to chemical leaching. Additionally, it is crucial to follow the intended use instructions for food-safe plastics to prevent safety hazards. For instance, a container marked as "dishwasher-safe" should not be washed in the sink, and a container meant for "cool liquids" should not be used for "hot liquids."
In summary, food-safe plastic is indeed a step beyond food-grade. By understanding the distinction between the two and staying informed about the latest research and brand statements, consumers can make safer choices for their health and the environment.
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How to identify food-grade and food-safe plastics
Food-grade plastic containers are those that are approved for contact with food. They are deemed non-toxic and suitable for food interaction. However, just because a container is food grade does not mean it is safe for all uses. For instance, a food-grade plastic container may be safe for storing dry pasta but could release harmful chemicals if used to store hot soup.
Food-safe materials are a step beyond food-grade materials. Food-safe plastics are food-grade plastics used as intended to prevent contamination or health risks. They are not only safe for food contact but also pass stringent tests for temperature resilience and chemical leaching.
To identify food-grade and food-safe plastics, you can look for the following:
- Check for a recycling symbol with numbers inside: Numbers 1, 2, 4, and 5 are generally considered safe for food storage. Number 1 is safe for single use, while Numbers 2, 4, and 5 are the safest for repeated use. Number 3 should be avoided as it may release harmful chemicals.
- Look for labels: Look for labels such as "'food grade' or 'food safe' on the plastic. You can also look for a "BPA-free" label, as BPA is a harmful chemical that can cause health issues.
- Check for symbols: Look for a cup and fork symbol, which indicates that the plastic is safe for food storage. Other symbols may include radiating waves to indicate that it is microwave-safe, a snowflake to indicate freezer-safe, or an image of dishware to indicate that it is dishwasher-safe.
- Understand the difference between food-grade and food-safe: Food-grade plastics meet regulatory standards for food contact, while food-safe plastics ensure no harm or contamination under normal usage conditions.
- Check the type of plastic: Common food-grade plastics include LDPE, HDPE, and PET, which are used for beverage containers, bottles, and food storage. HDPE is known for its strength, durability, and safety in food contact. LDPE is commonly used for bread bags and produce bags.
- Look for certifications: Look for certifications such as "USDA approved" or "FDA approved," which indicate that the plastic has been reviewed and tested by regulatory bodies.
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Brands are removing harmful chemicals from products
Food grade plastic containers are materials approved for contact with food. They are deemed non-toxic and suitable for food interaction. However, this does not mean that they are safe for all uses. For example, a food-grade plastic container might be safe for storing dry pasta but could release harmful chemicals if microwaved or used to store hot soup.
Brands are increasingly removing harmful chemicals from their products, showing a greater commitment to health and the environment. For instance, Glad has announced that its food storage containers and cling wraps are BPA and phthalate-free. Similarly, SC Johnson has stated that its containers and cling film are free from BPA and dioxins, and Tupperware's American and Canadian product lines have been BPA-free since 2010.
However, it is important to note that harmful chemicals are often replaced with other substances that may be equally or more harmful. For example, the removal of the hormone-disrupting chemical BPA, or bisphenol-A, from baby bottles and other plastic products may have led to its replacement with BPS, or bisphenol-S, which is thought to be even more harmful to children's health. This practice, known as "regrettable substitution," has been observed in various products, including pesticides, flame-retardant furniture, non-stick pans, and nail polish.
To ensure safety, consumers should stay updated on brand statements and check the safety of new products, as formulations can always change. It is also crucial to understand the distinction between food-grade and food-safe materials. While food-grade materials are approved for food contact, food-safe materials go a step further by passing stringent tests for temperature resilience and chemical leaching. For instance, polypropylene (PP) has a high melting point, making it suitable for hot foods and liquids, while polyethylene terephthalate, used for soda bottles and food containers, should not be left in hot places or direct sunlight as it can break down and become unsafe.
Overall, the removal of harmful chemicals from products is a positive step towards protecting public health and the environment. However, consumers must remain vigilant and informed about the safety of the products they use to make the best choices for their health and well-being.
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FDA approval and other food-grade certifications
Food-grade plastic containers are designated as materials that are safe for contact with food. They are deemed non-toxic and suitable for food interaction. However, this does not mean that they are safe for all uses. For instance, a food-grade plastic container may be safe for storing dry goods but could release harmful chemicals if used to store hot food.
Food-grade materials are reviewed and studied by the FDA's Division of Food Contact Notifications, which consists of scientists, chemists, and toxicologists. This team of experts performs tests to determine whether food-contact substances meet strict guidelines, including outlining the types of food and temperatures the materials can come in contact with, as well as their resilience to cleaning methods.
The FDA has approved several types of plastic for food contact, including:
- Acetal
- HDPE (high-density polyethylene)
- LDPE (low-density polyethylene)
- Nylon
- PEEK
- PET (polyethylene terephthalate)
- Polypropylene (PP)
- PPS
- PTFE
- UHMW
Recycled plastics are also approved by the FDA on a case-by-case basis, depending on the proposed conditions of use and the effectiveness of the recycling process in removing contaminants.
In addition to FDA approval, other certifications to look for include NSF and USDA approval. These certifications ensure that materials are safe, easy to clean, and resistant to corrosion. For example, HDPE sheets with these certifications are commonly used for cutting boards and food processing due to their high melting point, making them suitable for boiling and sterilisation.
When selecting food-grade plastic containers, it is important to check for specific certifications and follow guidelines related to food storage, temperature, and recycling. While food-grade plastics are deemed safe for food contact, understanding their limitations and proper use is crucial to ensure the safety and health of consumers.
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Frequently asked questions
Food grade plastic containers are plastic materials deemed safe for use with food. They are non-toxic and suitable for food interaction. However, they may not be safe for all uses, for example, a food-grade plastic container may be safe for storing dry pasta but could release harmful chemicals if used to store hot soup.
Check for a recycling symbol with a number inside (1, 2, 4, and 5 are generally safe) and look for labels like "food grade" or "BPA-free".
Food-safe plastic containers are a step beyond food grade. They are not only safe for food contact but also pass stringent tests for temperature resilience and chemical leaching. Food-safe containers include HDPE, LDPE, and PP plastics (resins #2, #4, and #5).
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