DATA: 2024-03-20 HITS: CLASS: Technical Knowledge
Many friends asked this question, some online friends also commented that plastic bags are unsafe under high temperature to produce carcinogens, in fact, ordinary plastic bags can only be used below 80 degrees centigrade, but our high temperature sterilization temperature of the zongzi sterilization pot is 121 degrees centigrade, ordinary plastic bags are afraid to enter the melting, can not be out of the pot. So what kind of bags can be used to package the rice noodles more safely?
High-temperature resistant packaging bags such as transparent high temperature resistant boiling bags, aluminum foil bags and PE bags are usually used for the product packaging bags requiring sterilization. These high temperatures use a composite material, which has different heat resistance.
Plastic food bags are relatively resistant to 140 ° C temperature rise. Additives can improve the flexibility of plastics, making them easier to produce, process and plastic deformation, and have been widely used in industrial production. Each kind of plastic has its heat resistance limit. At present, among the raw materials for food, PP can bear 140 ℃, followed by PE which can withstand 110 ℃, while PE (PS) can only withstand 90 ℃. At present, the special plastic handy box for microwave oven heating on the market is made of PP or PE. If the temperature exceeds their heat resistance limit, the additives may be released. Therefore, it is necessary to prevent the hot food from being heated by the high-temperature heated plastic handy box for a long time.
Do not put the plastic bag in the microwave heating for heating, because you never know which compound harmful to human body will be released after the article is heated or heated in the microwave!!! There is only a kind of really authentic water cup or handy box made of special plastic for food mouth, which is confirmed by the high and new technology at the present stage. It has not been found that too much harmful substances are released. However, nowadays, the really true food grade stainless steel can be put into the microwave heating volume. First, the price is very high, and second, there is a certain temperature regulation. Too high temperature will release harmful substances.
Food products, especially cooked vegetables, are often prone to mildew after being packaged in plastic bags. People may easily suffer from food poisoning such as nausea and stomachache after eating such mildewed food products. In addition, the plastic itself will release harmful substances. Due to long-term accumulation in the sealed bag, the concentration value will rise with the increase of the sealing time, causing the food materials in the bag to suffer from different levels of environmental pollution, especially the harm to the healthy growth and development of young people.
The melting point of PE plastic bag is 100-130 ℃, but if the surrounding natural environment temperature is above 50 ℃, the plastic bag will be deformed and folded, and if it continues to shrink into a ball. At this point, if you are always taking out the plastic bag, you can find that the plastic bag is too hard to start the application. But if you put it in water to boil, plastic bags will not change even if they exceed 100 ° C. For example, the common boiling bag is a very good example.
FACTORY
TELEPHONE
