If you have spent any time looking for food storage items to buy, you have undoubtedly come across #10 cans. These are the large cans that contain things like dehydrated carrots or freeze-dried cheese. They are the most popular ways to package long shelf-life foods commercially (think Emergency Essentials, Augason Farms, Thrive, and others). The shelf-life for these cans, depending on the product, is generally 20-30 years. They are strong, stack and store easily, and are rodent-proof. On the flip side, rust can be a problem if they get wet (tainting your food inside) and they take up a lot of space.
For home canning, you need a large, heavy #10 can sealer (around $1500 for an electric model – which you want). In the past, the LDS Church had these sealers in their dry-pack canning locations where people could borrow them for no charge. Unfortunately, they no longer have them. It is also more difficult to find the empty cans and lids since the church no longer carries them.
Mylar bags are those shiny, silver bags that you find in some of the cookie or cracker packages from the grocery store. The mylar bags that are much thicker are perfect for storing food. They come in a variety of sizes and I have found that the 11×13 size holds about the same amount of product as a #10 can. The shelf-life is the same as the cans. These bags are strong, water-proof, and can be easily opened with scissors. They are more difficult to store because they don’t stack as nicely as the cans. They are not rodent-proof.
For home canning, mylar bags make things easy! You need a mylar bag sealer (I have heard that a flat iron works but I have not tried it personally). There are a variety of options, sizes, and prices. Because of their price and size, these sealers are so much easier to work with and own than the #10 can sealer. The mylar bags themselves are also much cheaper than the cans. The LDS church sells them here or you can get them other places, including Amazon.
There are pros and cons to both #10 cans and mylar bags. Rest assured that both are great options for storing your food for the long-term.