Hi Namelus, yes, that method could also work. I have done that myself occasionally to force as much air as possible out of Ziploc-type food storage bags (holding non-dehydrated foods) before sealing them and placing them in the freezer. I would be a bit leery of using that method with dehydrated foods though since I want to keep those as far as possible from any source of moisture, both before and after they are sealed up.
