b'03 AVOID AIR LOCKSAvoid creating air locks in the vacuum bag. Position the meat or fish in the bag in such a way that air is not trapped during the vacuum process, for example, always leave a small gap up each side of the bag to avoid trapping air at the bottom. Mince is the exception to this rule, the best result is achieved if the mince is pushed down to the bottom corners of the bag and then pressed flat, then while the bag is being vacuumed, use your hand to press down on the mince to remove air which is trapped on the top surface of the mince.04 REMOVE BONESTake steps to prevent sharp bones from puncturing the vacuum bag. If a sharp bone must go into the bag, it is best to create an additional protection layer over the bone by using a piece of scrap vacuum film or simply a folded piece of paper towel.Visitzeropak.co.nz /FISHINGINGODZONE31'