Luxury tea packaging tin can

Food-grade iron cans are generally filled with nitrogen, and isolation from the air is conducive to the preservation of coffee and other foods, and it is not easy to spoil. After the coffee iron can is opened, it is required to be eaten within 4-5 weeks. However, the airtightness and pressure resistance of the bag are not good, and it is not easy to store and transport. The shelf life is about 1 year, and it is easy to break in transit. People print patterns on iron cans, so that the products not only play a role in food preservation, but also have a decorative appearance, which can attract customers' attention. It takes complicated printing processes to achieve exquisite effects. Coffee packaging iron cans made of tinplate, according to the characteristics of the contents (coffee), usually need to be coated with some kind of paint on the inner surface of the iron cans to prevent the contents from eroding the can wall and the contents from being polluted, which is conducive to long-term storage.