PackFreshUSA Oxygen Absorbers

Each pack includes a built-in oxygen indicator that changes color if it detects oxygen. If the indicator has changed color before you open the package, the absorbers have been compromised and should not be used.

Yes, they are made with food-grade, non-toxic materials, including iron powder and activated charcoal, and are fully FDA compliant for direct contact with food items.

The general rule is one 100cc absorber per 1-quart container. The included PackFreshUSA Food Storage Guide provides detailed charts to help you calculate the correct amount based on your specific container size and food type.

Because they are packaged in two separate vacuum-sealed 50-packs, you don't have to expose all 100 at once. However, once a 50-pack is opened, the absorbers begin working immediately, so you should use them right away or reseal the remaining ones in a small, airtight container.

These are most effective in airtight containers like Mylar bags, glass jars, or sealed buckets. They will not work properly in containers that are not airtight, such as standard plastic storage bins or bags that cannot be heat-sealed.

No special equipment is required. Simply place the absorber into your container with your food, seal the container tightly, and the absorber will do the rest.