How to seal mylar properly: jaw width, dwell time, failures
A 12-inch impulse sealer crosses a gallon bag in one pass. Most seal failures come from two-pass overlap, food in the seal line, or not checking.
Oxygen absorbers: how to size them without guessing
Size to the container, not the food: 300cc for a gallon bag. Round up, buy individually packed, and never confuse them with desiccants.
Mylar bags explained: thickness, sizes and what to buy
Buy 7 mil for long storage. Here is what the mil number means, which sizes to keep, and why zipper bags are the wrong choice for a deep store.