PackFreshUSA Oxygen Absorbers

Vacuum sealers remove air, but they often leave behind residual oxygen that can degrade food quality over time. These absorbers actively remove oxygen at a molecular level, creating a near-zero oxygen environment that is far more effective for long-term preservation than vacuum sealing alone.

Yes, they are food-grade and non-toxic. The active ingredient is iron powder, which is safely contained within the packet and never comes into direct contact with your food.

These 500cc packets are specifically designed for gallon-sized containers, such as Mylar bags or food-grade buckets. If you are using significantly larger or smaller containers, you may need to adjust the number of packets used to ensure proper oxygen removal.

Once the bulk pack is opened, the absorbers begin working immediately. To prevent them from activating, seal any unused packets in a small, airtight Mason jar or a vacuum-sealed bag as quickly as possible to preserve their shelf life.

No, these are strictly oxygen absorbers. They are designed to remove oxygen to prevent spoilage, not to absorb moisture or humidity. If your storage needs require moisture control, you will need to add separate silica gel packets.

While this specific product does not include an oxygen indicator, you can perform a simple check by feeling the packets. Fresh, active absorbers should feel soft and pliable; if they feel hard or have become rigid, they have likely already absorbed oxygen and should be discarded.