Contrary to popular belief, our bags are not vacuum packed. To keep our foods as fresh as possible, ORIJEN and ACANA foil lined bags are impermeable to oxygen transfer from the outside to the inside and vice versa. Once the bags are sealed, oxygen transfer is impossible.
Residual oxygen left in the bag when it is sealed depends on the amount of air pushed out by our air evacuation system (not to be confused with vacuum packing). Depending on how food enters the package, food density and ambient temperature, some bags will contain more air and some less.
While some of our packages will appear vacuumed and others not, the food in each bag will be equally fresh.