I have the foodsaver brand and I have always had excellent luck with it. I am not recommending you do this, but I took some to Vegas on an airplane and got through with it. I had it triple sealed, cleaned sealer bag with alcohol and for extra measure I sprayed all but the last seal with cologne. Might have been a dumb thing to do but it's hard to go without for 5 days. Once again I don't recommend anyone do this!