Why can't some plastic bags with the microwave?
Composite bags, aluminum foil bags, plastic bags one, the principle of microwave heating principle is the microwave food, use food is contained in strongly polar water molecules as a medium, can absorb energy from the microwave, violent vibration, friction in the molecule, which generate heat.
Used the microwave users know, metal or metal containers can't be put in the microwave.
Because the metal is made up of strong polar molecules.
belongs to physical heating, microwave cooking food in much the same way like cooking with open flames, heated food and nutrients retention is better than flame cooking, 5 cm of the internal heating can go deep into the food.
2, can be used as heating container material properties of the composed of nonpolar molecule material container, they do not absorb or basic rarely absorption of microwave energy, such as plastic products (
Polypropylene, polyethylene, etc. )
And glass, pottery and porcelain insulator, such as they can through the microwave, and do not absorb energy from the microwave, the material can be used as a container of microwave heating or support, or do the sealing material.
3, plastic thermal stability problem though plastic is not absorb energy from the microwave, but some plastic after heating food, its stability less easy to release toxic or carcinogenic substance, only cooking level using the plastic bags in the microwave heating to ensure food safety, general heating temperature not more than 120 degrees, to prevent the local temperature is too high, in the process of heating and release harmful substances, contaminated food.
summary: plastic itself will be a problem in the microwave, the problem is that the heat generated by the food can make ordinary plastic bags properties change, releasing toxic substances, caused the food safety problems.
So only indicate the pouch, can be used in microwave heating can be heated in the microwave. The manufacture marketing game of printed packaging bags is changing with each innovation, and businesses of all products need to be ready to pounce. Guangdong Huihua Packaging Co., Ltd. intends to make enough profit to generate a fair return for our investors and to finance continued growth and development in pouch printing. Although the core manufacturing factor of printed packaging bags is high technology, smart customers know that we need to enhance our material quality and producing standard.