Vacuum Barrier’s NITRODOSE® liquid nitrogen injection systems are used to pressurize or inert delicate packages. A precise drop of rapidly expanding liquid nitrogen into hot and cold fill lightweight PET packages allows for consistent pressure from package to package and eliminates paneling and palletizing problems. NITRODOSE® systems are also used to inert packaged foods reducing the oxygen absorption by the product to extend shelf life and maintain product taste, color and freshness.