- 47 -
5.4.2 Vacuum packaging
Important advice and tips
•
Do not leave too much air in the vacuum bag. Before sealing the vacuum bag,
squeeze out as much air as possible from the bag. With too much air in the vacuum
bag, the load on the vacuum pump may increase so much that the motor will not
have enough power to suck all air out of the bag.
•
In case of food products with sharp edges or corners, e.g. bones or dried noodles,
such places should be padded with paper towels in order to avoid damaging the
vacuum bag.
•
Do not put too many food products in the vacuum bag. Leave enough space to allow
easy insertion of an open end of the bag in the vacuum chamber.
•
Always place the open end of the vacuum bag flat and evenly on the sealing strip,
do not fold or bend the vacuum bag.
•
Big vacuum bags which are not fully filled require longer vacuum packaging time;
smaller bags may be vacuum packed faster.
•
Always check the seal – it should be even and have no folds. In case of incomplete
sealing, cut off the seam and repeat the entire vacuum packaging process.
Selection of vacuum bags
•
Vacuum bags are delivered in various sizes. Select the size appropriate for food
products to be packed. Make sure that the vacuum bag is at least 7 cm bigger
than the packed product and include another 2 cm for successive use of the
vacuum bag.
NOTE!
For vacuum packaging use only special vacuum packaging bags (one-side
corrugated, extruded bags for vacuum packaging).
