Technical guide
How aseptic bag filling works
How cooled, heat-treated liquid moves through a sterile pipe and filling head into a sealed bag.
A typical line cools the treated product, then transfers it to the filler along an aseptic path. How the filling head connects to and closes the bag depends on the equipment and package design.
The seal protects the drink after filling. Designing and checking the line includes cleaning and sterilizing the filling chamber and the surfaces that touch the drink.