I have sealed my mylar bags and oxygen absorbers, but it looks as if they are still full of air after several days. Are they okay?
They may still have air in them but all the air may be nitrogen which is just fine. So she may be just fine. Have her check the seal and make sure the bag is airtight. If it’s different types of food she may want to recalculate how much oxygen she needs to absorb. But the absorbers will only absorb 20% of the remaining air. So the rest of the 80% is just fine to have. It doesn’t need to be free of air to be stored properly just free of oxygen.