From ancient times to the present, people will bring gifts when visiting relatives and friends. This is a traditional etiquette and custom since the Middle Ages. When visiting relatives and friends far away, they often bring some special products of their hometown or their own packaged in aluminum foil bags. The special snacks and dry goods of the masterpieces show more sincerity and affection. The so-called courtesy is light and affectionate, and the important thing is that kind of heart. However, some things are ready-to-eat, and they will easily deteriorate when they are carried. Therefore, there are many things that are very delicious, but they cannot be taken away. Mildew and deterioration may also be caused by the loss of the original taste of the food due to too long time. Now with the development of science and technology, these problems have been solved, and if necessary, it is very good to prevent the food from spoiling on the way, and it will not damage the flavor of the food. The vacuum bag has a good function of preventing the entry of air, resisting external pressure, and maintaining the freshness of food. When visiting relatives and friends, always keep aluminum foil bags at home for packaging, which is more face-saving. Aluminum foil bags are not plastic bags, and can even be said to be superior to ordinary plastic bags. When you need to refrigerate or pack your food now, and you want to keep the food fresh for the longest possible time, which packaging bag should you choose? Don’t worry about which packaging bag to choose, aluminum foil bag is the best choice. Food bags, aluminum foil bags commonly used in food packaging bags, generally have anti-gloss on their surface, which means that they do not absorb light and are made of multiple layers. Therefore, aluminum foil paper not only has good shading properties, but also has strong It has good oil resistance and softness due to the aluminum content.