What are mylar bags made of?
Mylar bags are made from a kind of stretched polyester thin-film material. This polyester film is known for being durable, flexible, and for acting as a barrier to gases like oxygen and to smells. Mylar is also great at providing electrical insulation.
The film itself is clear and glassy. But when it’s used for food, the mylar material is covered with a super thin layer of aluminium foil.
The combination of plastic and foil transforms the mylar material from transparent to opaque, so that you can’t see through it. The purpose of this is to stop the light from getting in. We will explain why this is important for long term food storage next.
We may need them to survive, but oxygen, water and light are the enemies of long term food storage! Oxygen and moisture causes food to lose flavour, texture and nutritional value over time.This is where mylar bags come in.
Mylar bags are used for food storage at room temperature. The bags are designed as a barrier to oxygen, moisture and light. Keeping these three elements out of food helps preserve it over years. Here’s a quick run through of how.
Bacteria and bugs are the most common cause of food waste. Both of them thrive on moisture. So regulating the moisture level of food is one of the most important things we can do to extend its storage life.
Light on the other hand causes chemical reactions in food that lead to spoilage. One of the most effective ways of reducing light-induced food spoilage is to pack it inside something that blocks sunlight.You’re only able to keep food fresh long term at room temperature by removing these elements from the food.
If you want to store certain foods in your pantry for more than a year, mylar bags are an inexpensive way to do it.An important detail before we move on is that mylar bags are only for dried foods. Foods with a moisture content of less than 10% to be specific. You can’t store wet foods in mylar bags. You’ll need to use alternative preserving methods for food that contains moisture.So if it’s not dry, don’t try!
If you need to know more about Mylar bags, Contact us: jurleen@fdxpack.com /+86 188 1396 9674 FDX PACK.COM
Post time: Aug-05-2023
