I posted this a while ago, and I don't think anybody ever put much thought into this, but I was hoping to help clear the air for future BAs (only those that'll actually read this though, I guess). Here's the link to the original post. I hope this sheds some light on the topic. In summation: 1. A vacuum sealer WILL NOT pull CO2 out of solution (by means of Henry's Law). 2. A vacuum sealer will still make your beer go flat due to the check-valve mechanical nature.