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How to use plastic lunch box correctly?

How to use plastic lunch boxes correctly? Bento boxes are also called fresh-keeping boxes, disposable lunch boxes, disposable lunch boxes, etc. Fresh-keeping boxes are divided into three types: one is plastic fresh-keeping boxes: made of resin materials, the general temperature range: the highest temperature is 120 ℃, the lowest temperature is -20 ℃, one is the tempered glass fresh-keeping box: ordinary glass tempered, the last one The kind is heat-resistant glass preservation box, using high borosilicate glass material.

　　As consumers pay more and more attention to health, people pay attention to whether the materials used in the crisper itself are healthy. Hygienic and safe materials are harmless to the human body, such as PC materials, PE materials and PP materials, etc. Now the more common material of fresh-keeping boxes is PP materials. Plastic containers can not be placed in microwave ovens and ovens, because plastics will produce harmful substances at high temperatures. In addition, the tempered glass crisper may explode when it encounters extreme cold and heat. The most fashionable and green crisper at present is the heat-resistant glass crisper.

　　 Different shapes store different things, which is more convenient to use. In addition to the common squares, rectangles, and circles, there are also suits specially designed for picnics, which make life easier and more convenient.

　　Four square packing box: excellent sealing performance, suitable for storing food, can prevent odor in the refrigerator, suitable for storing all kinds of condiments, leftovers, leftover cans, fruits, vegetables. It is convenient to use in refrigerator, freezer, microwave oven, and can also be used for other purposes.

　　 Rectangular packing box: suitable for storing bacon and meat food. Because there is a water receiving plate, it is easy to store food with moisture. The large-capacity rectangular crisper is suitable for storing fruits, vegetables and seafood.

　　 Round packing box: suitable for long-term storage of various condiments, canned fruits, cereals, nuts, tea and other foods, easy to put in refrigerators, freezers, microwave ovens. The oblong design is suitable for storing beverages, children's milk and various cereals, nuts and tea during wild trips.

High tube packing box: suitable for storing long strips of food such as noodles and cucumbers. Since the height dimension of the high tube storage box is higher than that of the general storage box, the processing technology requires high mold size and mold removal, so it can be produced on the market There are not many manufacturers of high-end containers, and there are relatively few products.