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with the requirement of people for fresh food continues to improve, especially in different environments and the effects of temperature, many people often need fresh food, eat some food in the film and therefore, manufacturers produce various different fresh-keeping film, plastic film manufacturers in the production and preservation of film production can not only bring more fresh food for people, and also makes people's food in the food safety, more assured, but if used in the process of fresh film may also be caused by improper use of fresh food is not fresh, so, how people should use more at ease.
1, when people in the heating large oily food, it is best not to direct contact with food preservative film, but should keep a certain distance, so that the plastic film on the heating does not appear to have damage phenomenon, to ensure the safety of food
2, the need for heating food should be used to cover good ware, and then use the toothpick needle in plastic wrap with a few can be used for ventilation holes, which can not only help the evaporation of water, and can avoid the gas expansion and preservation membrane blasting phenomenon etc.

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