How To Seal Mylar Bags With Foodsaver. It is important to seal the pouches quickly so that the oxygen absorbers can work properly. Place the duct tape to the side of the mylar that will go on the bottom of the food sealer, then vac & seal as you would, and seal a few times to make sure your seal wont leak while in storage.

Then came the seal part. When lined it up in the machine, it began to draw the vacuum. I though i came up with a good way to save the o2 absorbers.