The term "food grade" refers to a material that has undergone rigorous testing and certification to ensure that it does not release harmful substances when it comes into contact with food. Different countries and regions have different standards, common standards include the United States Food and Drug Administration (FDA) standards, European food contact materials regulations, and so on.
1. Non-toxic: will not release harmful substances into the food.
2. Chemical stability: It can resist the corrosion of acid, alkali and other chemical substances.
3. Heat resistance: It can be used within a certain temperature range without decomposing or producing harmful gases.
4. Food compatibility: It will not react with food ingredients to maintain the quality and safety of food.
Polypropylene (PP) is a thermoplastic widely used in food packaging and tableware. Due to its many unique physicochemical properties, PP is considered to be a very safe and suitable material for contact with food.
1. High temperature resistance: PP has high heat resistance and can withstand temperatures up to 130°C, so it is very suitable for microwave oven containers, hot food boxes, etc.
2. Non-toxic: PP is a low reactive material, not easy to react with food, and will not release harmful substances.
3. Chemical stability: PP has good resistance to most acid and alkaline substances, so it also shows good stability in food storage.
4. Widely used: PP material is widely used to make a variety of food containers, such as yogurt boxes, lunch boxes, food packaging bags, etc., in line with food contact standards.
Therefore, PP is indeed one of the plastic materials that meets food grade standards, and its safety and reliability make it the material of choice for food packaging and storage.
Polyethylene terephthalate (PET) is mainly used in the manufacture of beverage bottles, food packaging containers and other consumer packaging. PET is also widely used in the food packaging industry, especially in the production of beverages and water bottles.
1. Transparency and air tightness: The transparency of PET enables consumers to clearly see the contents of the bottle, and it has good air tightness, which can effectively extend the shelf life of food and beverages.
2. Safety: PET is a certified food-grade plastic, which meets the relevant food contact material standards of the United States FDA and the European Union, and its safety has been strictly verified.
3. High temperature resistance and oxidation resistance: Although the heat resistance of PET is not as good as PP, it can still be used stably at room temperature and a certain range of heat. PET is commonly used in cold drinks and packaged foods, but its physical properties may change at high temperatures.
4. Wide application: PET is widely used in bottled water, soft drinks, juices, ready-to-eat foods and other packaged foods. Its safety and durability make it one of the mainstream materials in the global food and beverage packaging industry.
1.Scope of application: PP has strong heat resistance and chemical resistance, so it is suitable for microwave oven containers, hot food packaging and food storage. PET's transparency and air tightness make it more suitable for packaging liquid foods such as beverages, juices, and bottled water.
2. Food grade certification: Both are food grade materials that can be safely used for food packaging as long as they meet food contact standards. However, their use scenarios are different, PP is suitable for high temperature contact, and PET is mainly used for cooling drinks and low-temperature food packaging.
3. Safety: Both plastic materials have been widely certified for safety, meet food-grade standards, and have no known harmful ingredients. They are safe materials for food contact as long as appropriate production processes are used.
In general, which material to choose as a food packaging depends on the specific use needs and product characteristics. Whether it is PP or PET, they meet food grade standards and can be widely used in our daily life under the premise of safety.
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