Select plastic food boxes have tips to buy before you should see the logo

Plastic food container products have been widely used by many families, students, and office workers due to their characteristics of durability, unbreakability, and ease of use. To understand the quality of plastic food containers on the market, the Guangzhou Consumer Council recently conducted comparative tests.

The subjects of this comparative test were 34 batches of plastic food container samples, which were made of polyethylene (PE), polypropylene (PP), polystyrene (PS), and polycarbonate (PC), including fresh-keeping bags and fresh-keeping. Boxes, microwave boxes and cups, etc. After inspection, all the items examined in these samples meet the standard requirements, and the compliance rate is 100%, which indicates that the quality and safety of most plastic food containers have been well protected.

According to reports, the triangular symbol with an arrow is usually marked on the bottom of the cup or on the product packaging of plastic food containers, which is a symbol of recyclable recycling. In the middle of the triangle is usually marked with Arabic numerals, such as 1-7, which represents the material used in the container, where 1 represents PET (polyethylene terephthalate), 2 represents HDPE (high density polyethylene), 3 PVC (polyvinyl chloride), 4 LDPE (low density polyethylene), 5 PP (polypropylene), 6 PS (polystyrene), 7 PC, and others. Containers of different materials vary greatly in performance.

Polyethylene (PE) food cling film is poor in heat resistance and must not be heated at the same time as food. Qualified PE cling film will melt when the temperature exceeds 110 degrees Celsius, leaving some plastics that can't be decomposed by the human body. Wrap the cling film to heat the food. The oil in the food can easily dissolve the harmful substances in the cling film. . Therefore, remove the plastic wrap before heating the food in the microwave oven.

Polypropylene (PP) is one of the main materials for food packaging, but its transparency is poor and it can be reused with care and cleaning. It is harder and has a higher melting point than PE, so microwave ovens of this material are generally resistant to high temperatures of 130 degrees Celsius.

Polystyrene (PS) products are resistant to heat and cold, but cannot be heated in a microwave oven. The material is mainly bowl-shaped instant noodle boxes, foaming snack boxes and cups. If the temperature is too high, chemicals will be released. If used to hold strong acids (such as orange juice), strong alkaline substances, it will also break down the polystyrene that is harmful to human body. Therefore, in daily life, consumers are advised to avoid packing hot foods with fast food boxes.

Polycarbonate (PC) materials are used to make baby bottles and space cups. Don't heat them when using, and don't direct sunlight. The residual bisphenol A in the PC, the higher the temperature, the more the release, the faster the release rate, therefore, do not use PC water bottles to hold hot water or use dishwashers, drying dishes. Before use for the first time, wash with baking soda powder and warm water, and air dry naturally at room temperature.

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