Aseptic bag refers to a type of packaging used to preserve and extend the shelf life of various liquid or semi-liquid products, such as dairy products, juices, sauces, soups, and pharmaceuticals. Aseptic bags are made from multiple layers of plastic and aluminum, which prevent contamination and maintain product quality by blocking light, oxygen, and microorganisms.

The bags are sterilized through aseptic processing, a technique that involves sterilizing the product and packaging separately and then combining them in a sterile environment. This ensures that the product remains free from harmful bacteria, mold, and other pathogens.

Aseptic bags come in various sizes and shapes, and they are designed for easy transportation, storage, and dispensing. They are commonly used in the food and beverage industry, as well as in the healthcare industry for products such as tomato paste, mango pulp,dairy milk, egg liquid etc.