I've been using one of these for years, but have always had problems with juicy meat causing the sealer to sometimes not seal. I used to use a paper towel folded up, but not touching the meat, to intercept the moisture creeping up toward the heat sealer. Last week, we bought a 10 lb bag of chicken leg quarters, and Mrs. Pine wanted me to partially thaw them out so we could repackage them, putting 2 or 3 leg quarters to a package. So I got them so I could separate them without breaking them, and put them into smaller packages. Trouble was, the meat was extremely juicy and the juice would get past the paper towel and still cooled the heat sealer so that the seal wasn't reliable. Then it hit me; why not package them, and place the unsealed package in the freezer long enough for the juice to freeze, and then seal them. Happy to report this works great; wish I had thought of this years ago. Hope this little tip might be useful to someone else.