Basic classification of food packaging

Food packaging can be divided into metal, glass, paper, plastic, composite materials, etc. according to packaging materials, and can be divided into cans, bottles, packs, bags, rolls, boxes, boxes, etc. according to packaging types. It can be divided into canning, bottling, sealing, bagging, wrapping, as well as pouring, gathering, sealing, labeling, coding, etc. according to packaging methods; It can be divided into inner packaging, secondary packaging, tertiary packaging, outer packaging, etc. according to product hierarchy.
Due to increased attention and higher requirements for food safety, some countries have strengthened their regulatory management of food packaging. The implementation of nutrition standard regulations, indirect additive regulations, and the promotion of biodegradable packaging, electronic scanning barcodes, etc. are all promoting the new development of food packaging.
There are many methods for classifying food packaging. According to the techniques, it can be divided into moisture-proof packaging, waterproof packaging, mold proof packaging, fresh-keeping packaging, quick freezing packaging, breathable packaging, microwave sterilization packaging, sterile packaging, inflatable packaging, vacuum packaging, deoxygenation packaging, bubble wrap packaging, skin to body packaging, stretch packaging, steaming bag packaging, etc. The above-mentioned packaging is made of different composite materials, and its packaging characteristics correspond to the requirements of different foods, which can effectively protect the quality of food.