Scholle (1997) advanced the concept of using an aqueous solution of the sulfite trapped between the layer of a multiwall package, such as bag-in-box. This concept was directed at the rapid removal of headspace and dissolved oxygen from liquid foods and beverages such as wine. This is a particular problem associated with bag-in-box, where it is difficult to avoid air headspaces due to both filling, and already between the webs used to make up bag.