Hi all, I'm going to be making a new batch of gravy, hopefully, this weekend. I know that the recipe states that the food should be poured into ziploc sandwich bags and that the excess air should be squeezed out. Does anyone know the reason for this? Would the excess air somehow contaminate the food or is it to save space? I've been wondering since having all those bags scattered about the freezer is a bit frustrating and I thought it would be nice to be able to use those Gladlock sandwich containers instead since it's easy to stack them and you can reuse them. Thanks. Liz [Posted in FML issue 3004]