Recently, consumers anonymously reported through the "12345" government hotline that they had purchased frozen durian from a certain fruit store. The merchant directly placed the packaging box in a microwave oven for heating, causing the packaging box to deform during heating. They hope the fruit store can rectify the situation.

After investigation and verification, the complainant reported that the situation is true, and the store placed the packaging box made of non microwave heating materials into the microwave oven for heating. The staff issued an administrative reminder on site requesting the store to immediately rectify. Fruits that require microwave heating should be packaged in PP5 material boxes.

The national standard GB18006.1-2009 "General technology Requirements for Plastic Disposable Dining Utensils" has made specific provisions on the heat-resistant water performance, heat-resistant oil performance, water leakage performance, weight bearing performance and microwave oven temperature resistance of dining utensils, which provides guidance for consumers to use scientifically. Qualified products should be selected to maintain consumers' health.

When purchasing plastic products, it should be noted that there is a triangle composed of three arrows representing a cycle on the plastic product, and the middle number represents different materials, mainly including polyethylene (PE), high-density polyethylene (HDPE), polyvinyl chloride (PVC), low-density polyethylene (LDPE), polypropylene (PP), polystyrene (PS), etc. It can be used as food packaging box material "05" PP (polypropylene) common soybean milk bottle, yogurt bottle, juice drink bottle, microwave oven lunch box, etc. It is an opaque or semi transparent container with advantages such as acid and alkali resistance, chemical resistance, collision resistance, and high temperature resistance (about 20 ℃~120 ℃). The only plastic box that can be put into the microwave can be reused after careful cleaning. PP has a melting point of up to 167 ℃, is heat-resistant, and products can be disinfected with steam.

The Market Supervision Bureau of Xiangcheng District reminds that if you want to use a microwave to heat food, you must pay attention to the material of the lunch box. Usually, there is a triangle symbol at the bottom of the plastic container, and if it is not made of PP material or is not marked with "microwave heating", it is best not to use a microwave to heat. (Correspondent Yang Hui)