An aseptic bag is a germ-free container that is used within the supply chain of several drug products. Sufficiently sealed, aseptic bags like Single Use Support’s IRIS Single-use bioprocess containers are designed to prevent the products that are stored within them from being contaminated.Aseptic bags need to be sterilized before they can be used; the four main ways to do so are:sterilization by heatsterilization by radiationmechanical sterilizationchemical sterilization