By the mid-1990s, there were dozens of foreign companies producing various aseptic packaging equipment. At present, aseptic food packaging of liquid food packaging in developed countries abroad has accounted for more than 65%, and it is growing at a rate of more than 5% every year. From the initial introduction of foreign aseptic equipment production lines and packaging consumable materials to independent research and development, China's aseptic packaging technology has gone from scratch and gradually matured.
The advantages of aseptic packaging are mainly reflected in the following aspects:
1. The best method for sterilizing packaged foods can be selected according to the characteristics and requirements of the food itself. The purpose is to ensure the best protection of food color, flavor, and nutritional components. Composite packaging materials and vacuum conditions can make products free Affected by light, gas, odor and microorganisms, foods do not need to be added with preservatives, transportation and storage do not need to be refrigerated, and the storage period can be extended, which is convenient for storage, transportation and sales.
2. Food and containers used for aseptic packaging are sterilized separately to avoid food and packaging containers from reacting and reduce the penetration of container components into the food.
3. It is suitable for automatic continuous production, high production efficiency, energy saving and labor saving, which is conducive to reducing production costs.
4. Aseptic packaging meets the current trend of environmentally friendly packaging. Aseptic packaging materials are made of paper, which is easy to degrade and is good for protecting the environment. Due to the above advantages of aseptic packaging, this technology has been widely used in various industries such as food, beverage, dairy products and so on. Today, the vast majority of milk and more than half of the fruit juices in developed countries are in aseptic packaging.