I have used them not only for food products, but to seal old coins, knives, documents and various other items. Never had a problem with deterioration, cracks, or leakage of any kind. Can't beat them for the price.
Quality and size of bags perfect for shelf and freezer preserving
These bags are the perfect size and quality for my long and short storage needs. I like the ease of having the different sizes ready for my harvest or store purchases.
Thomas 
Roger Howard 
