8. Can OxyFree® absorbers be exposed to open air before application?
Avoid exposing OxyFree® packets to open air for an extended period of time. When the master vacuum bag is opened, the iron powder in the sachets will start a chemical reaction with the oxygen from the air and form an iron oxide in the packet, thus exhausting its oxygen absorption capacity. Depending on the type of formula, there is a limited time period that sachets may stay exposed to open air before being applied. In general, it is recommended to apply the OxyFree® sachets within 60 minutes after the master vacuum bag has been opened.