Mylar pouches and foil bags for food preservation are available from Wallaby Goods. It offers MRE mylar bags that guarantee light- and moisture-proofing as well as airtightness. It is made from food-grade, BPA-free materials. The bags have a zipper seal and can withstand water that is boiling up to 257° F.
For more information, visit: https://wallabygoods.com/products/mylar-mre-pouches