Both food jars and tea jars are common packaging containers used to store items such as food and tea. Food cans are usually made of materials such as metal or tinplate and have sealing properties, which can effectively maintain the freshness and taste of food. Food cans are available in the market in a variety of different shapes and sizes to meet the needs of different food packaging, such as coffee cans, jam jars, milk powder cans, etc. Food cans not only have the function of preservation, but also can effectively prevent food from being spoiled by moisture and extend the storage life of food.