Can food plastic containers be used for storing dairy products?

As a supplier of food plastic containers, I often encounter questions from customers regarding the suitability of our products for various types of food storage, especially dairy products. Dairy products, such as milk, yogurt, and cheese, have unique characteristics that require careful consideration when it comes to packaging and storage. In this blog post, I will explore the factors to consider when using food plastic containers for storing dairy products and provide some insights based on industry knowledge and research.

Compatibility of Plastic Materials with Dairy Products

The first and most crucial factor to consider is the compatibility of the plastic material with dairy products. Different types of plastics have different chemical compositions, and some may interact with dairy products in undesirable ways. For example, certain plastics may leach chemicals into the dairy products, which can affect their taste, quality, and safety.

One of the most commonly used plastics for food packaging is polyethylene terephthalate (PET). PET is a clear, strong, and lightweight plastic that is widely used for packaging beverages, including milk. It is considered safe for food contact and has excellent barrier properties against oxygen and moisture, which helps to preserve the freshness and quality of dairy products. Another popular plastic for food packaging is high-density polyethylene (HDPE). HDPE is a durable and rigid plastic that is often used for packaging milk jugs and other dairy containers. It is also safe for food contact and has good resistance to chemicals and moisture.

However, not all plastics are suitable for storing dairy products. For example, polyvinyl chloride (PVC) contains additives such as phthalates, which can leach into food and may have potential health risks. PVC is not recommended for direct contact with dairy products. Similarly, some types of polystyrene (PS) may contain styrene, a chemical that has been linked to health concerns. While expanded polystyrene (EPS) is commonly used for packaging frozen dairy products, it is important to ensure that it is food-grade and does not leach any harmful substances.

Barrier Properties of Plastic Containers

In addition to compatibility, the barrier properties of plastic containers are also important for storing dairy products. Dairy products are sensitive to oxygen, light, and moisture, which can cause spoilage, oxidation, and flavor changes. A good plastic container should have excellent barrier properties to protect the dairy products from these factors.

As mentioned earlier, PET and HDPE have good barrier properties against oxygen and moisture. They can help to prevent the growth of bacteria and mold, which can spoil the dairy products. Some plastic containers also have additional layers or coatings to enhance their barrier properties. For example, some milk jugs are made with a layer of ethylene vinyl alcohol (EVOH), which is a high-performance barrier resin that provides excellent oxygen barrier properties.

Light is another factor that can affect the quality of dairy products. Exposure to light can cause the breakdown of vitamins and other nutrients in dairy products, as well as the development of off-flavors. To protect dairy products from light, some plastic containers are made with opaque or tinted materials. For example, yogurt containers are often made with opaque plastic to prevent light from reaching the product.

Hygiene and Cleanliness

Maintaining proper hygiene and cleanliness is essential when using plastic containers to store dairy products. Dairy products are a rich source of nutrients, which can support the growth of bacteria and other microorganisms. If the plastic containers are not clean, they can contaminate the dairy products and cause spoilage.

Before using a plastic container to store dairy products, it should be thoroughly washed with warm, soapy water and rinsed well. It is also important to dry the container completely before filling it with dairy products. Avoid using containers that have any cracks, scratches, or other damage, as these can provide a breeding ground for bacteria.

After using a plastic container to store dairy products, it should be cleaned immediately to prevent the growth of bacteria. If the container has any residue or odor, it can be soaked in a solution of vinegar and water to remove it. It is also a good idea to store the plastic containers in a clean and dry place when not in use.

Our Product Range

At our company, we offer a wide range of food plastic containers that are suitable for storing dairy products. Our Dumpling Disposable Plastic Container is made from high-quality PET material, which is safe for food contact and has excellent barrier properties. It is perfect for storing small amounts of dairy products such as yogurt or cheese. Our Transparent Vegetable Plastic Packaging Box is also made from PET material and is transparent, which allows you to easily see the contents of the container. It is a great option for storing milk or other liquid dairy products. In addition, our Plastic Box For Roasted Chicken is made from HDPE material, which is durable and rigid. It can also be used for storing dairy products such as cottage cheese or sour cream.

Conclusion

In conclusion, food plastic containers can be used for storing dairy products, but it is important to choose the right type of plastic material and ensure that the containers have good barrier properties and are clean and hygienic. PET and HDPE are two of the most commonly used plastics for food packaging and are generally considered safe for storing dairy products. However, it is always a good idea to check the product label or consult with the manufacturer to ensure that the plastic container is suitable for the specific type of dairy product you want to store.

If you are interested in purchasing food plastic containers for storing dairy products, please feel free to contact us. We are a professional food plastic container supplier and can provide you with high-quality products and excellent customer service. We look forward to hearing from you and working with you to meet your packaging needs.

References

American Chemistry Council. (n.d.). Plastic Packaging for Food. Retrieved from https://www.americanchemistry.com/Plastic-Packaging-for-Food
Food and Drug Administration. (n.d.). Food Contact Substances. Retrieved from https://www.fda.gov/food/food-contact-substances
International Dairy Foods Association. (n.d.). Dairy Packaging. Retrieved from https://www.idfa.org/topics/dairy-packaging