What are oxygen absorbers made of?
Most oxygen absorbers used for long term food storage are simply packets containing a small amount of iron powder, activated carbon (charcoal), and salt. Once an oxygen absorber is removed from its original packaging it begins to absorb moisture as it combines with the iron, salt, carbon, and oxygen to rust the iron. This in turns traps the oxygen and lets off a small amount of heat.
It’s important to note that there many other applications for oxygen absorbers than long term food storage so make sure you get the right ones shopping around. For an example of the right kind of oxygen absorber you’ll need to store food long term, check out our store.
You can also learn more about oxygen absorbers by reading this guide. Please note this is an external site that we aren’t affiliated with in any way, the link will open a new browser window.
Posted in: Food Storage Questions