Today, we put environmental protection and health first. Growing vegetables in foam boxes is the most common way to grow vegetables on the balcony. Ordinary cities choose cheap and easy-to-use foam insulation boxes. Some people will say that you can't order food. Is that right
The main chemical composition of foam insulation boxes
is polystyrene, which has been used for more than 100 years. From the perspective of chemical layout, it is basically non-toxic, can be used for food packaging, and its chemical properties are relatively stable. However, it is assumed that such foam insulation boxes are always exposed to toxic substances after exposure to sunlight and high temperatures.
Experts use polystyrene foam for experiments. In a boiling environment, polystyrene is declared as the water content within a minimum load of 3 hours below the detection limit. Under the premise of experiments, ethylene foam is usually short, long and stable. If the external temperature is above 100 ° C, it will soften naturally, and when the temperature reaches 200 ° C, it will completely dissolve into a liquid. The foam insulation box is simple and cheap, and it is the first choice for people to grow vegetables.
What is the purpose of the foam insulation box? For foam insulation boxes, they can usually be seen underwater or even anywhere in aquatic products. Foam insulation box is a packaging container made of foam plastic. bubble. Expanded polystyrene foam is a new type of intermediate packaging and insulation material. It has the advantages of light weight, impact resistance, easy molding, beautiful appearance, dazzling appearance, high efficiency, energy saving, low cost, and being widely used.
But the stress of using it to make food can affect our health. When the temperature reaches 65 ° C, harmful substances from disposable foam can enter the food, causing danger to the human liver, kidneys and central nervous system. Foam insulation boxes are usually made of polyvinyl chloride plastic. Commonly used for cold storage.