Long-Term Food Packaging: Mylar Bags vs Cans
Mylar bags were initially used by NASA for a number of purposes, including food storage for astronauts. They are essentially a special form of polyester that is incredibly airtight and water resistant. They are light-weight, incredibly strong and create a nearly impenetrable barrier that protects contents from oxidation and other chemical processes that cause spoilage or corrosion. This is why they are such an important component of a long-term food storage plan, and they are far more effective than using cans, mason jars or plastic bags.