A pneumatic spring and damper unit has working chambers which are filled with compressed air and are partially defined by rolled bellows or corrugated bellows. The base of the drying rack is rectangular in shape and fits snugly against the walls of the bag, the base having arms that rotate up and out of the top of the bag. , adsorbent or absorbent, and indirectly added to the food product via a closed environment of a package by readily releasing the flavorant from the substrate.