What a vacuum packaging is
Vacuum
packaging is popular in the industry
due to wide applications, not only
for foods, but also for the protection
of a variety of products that are
sensitive to dust, gases or corrosion
in the medical, optical and pharmaceutical
industries and many others. The
instant food should not be decayed
or deteriorated for an extended
period, and delicate parts such
as semiconductors should not be
affected by static electricity from
dusts, which requires vacuum packaging.
Vacuum packaging is absolutely hygienic
and allows the sterilization of
packed objects. Where there is no
oxygen, the surface cannot corrode
or get damaged. Vacuum packing is
a process whereby air is removed
from a storage bag or container
in order to protect food from the
harmful effects of contact with
bacteria, mold, and yeast in the
air, thereby keeping food fresher
longer, and allowing longer shelf
life. The vacuum packaging can extend
distribution period by three times
with unchanged freshness, taste,
color, smell and nutrients. For
example, vegetables, meats and marine
products can be easily decayed,
so they should be vacuum packaged
for a safe and sanitary storing
without smells.Vacuum packaging
can keep fresh foods for an extended
period without chemical treatment,
prevents diseases, promotes health
and reduces food wastes.
How a Vacuum Sealer works
The
first step in using a vacuum sealer
is to place your product in a bag.
The bag is then placed inside the
chamber. The top cover of the chamber
is then pulled down. Once the air
begins to be removed from the chamber,
manual pressure on the lid can be
removed, as it will stay in place
by itself. The chamber then removes
the designated amount of air from
the chamber. The machine then seals
the bag shut and returns the chamber
air pressure back to normal. The
air in the bag is not returned to
normal, because it has been sealed.
The end result is a properly vacuum-sealed
product.
Storage Guide
Preparing
Meats/Poultry/Fish for Vacuum Sealing
For best result, freeze for 1 to
2 hours before vacuum sealing.
If pre-freezing is not an option,
place a folded paper towel in the
center of the bag to
absorb excess liquid, then place
meat in bag. Vacuum seal bag with
paper towel and
meat in place
|
Meat/Fish/Poultry |
Whereto store |
Recommended
storage
system |
Zeropack
system
storage
Time |
Normal
Recommened
Storage
Time |
|
Meat
(beef
stew
type) |
Freezer |
Bag |
3years |
6
to 9months |
|
Lamb
(steaks
and
chops) |
Freezer |
Bag |
2years |
3
to 4
months |
|
Pork(chops) |
Freezer |
Bag |
2years |
2
to 3
months |
|
Ground
beef |
Freezer |
Bag |
1years |
2
to 3
months |
|
Poultry
(whole
chicken) |
Freezer |
Bag |
3years |
12months |
|
Fish(lean) |
Freezer |
Bag |
2years |
6
to 9months |
|
|
Source : Food
marketing Institute,
January 2003
|
|
Preparing
Vegetables for Vacuum Sealing
Vegetables should be blanched before
vacuum sealing to retain nutrients,
flavor and
color. To blanch vegetables, place
them in a large pot of boiling water
and cook
according to the chart below, then
immediately drain and plunge drained
vegetables
into a pot of very cold water to
stop the cooking. Drain vegetables
then place on paper
toweling or on a kitchen towel to
dry, then vacuum seal and freeze.
|
Vegetables
(home
frozen) |
Blanching
time |
Whereto
store |
Recommended
storage
system |
Zeropack
system
storage
time |
Normal
recommended
storage
time* |
|
Asparagus |
1
to 3
minutes |
Freezer |
Bag |
3years |
10months |
|
Broccoli |
3
to 4
minutes |
Freezer |
Bag |
3years |
10months |
|
Brussels
sprouts |
3
to 4
minutes |
Freezer |
Bag |
3years |
10months |
|
Cabbage |
3
to 5
minutes |
Freezer |
Bag |
3years |
10months |
|
Cauliflower |
3
to 4
minutes |
Freezer |
Bag |
3years |
10months |
|
Corn,
on the
cob |
6
to 12
minutes |
Freezer |
Bag |
3years |
10months |
|
Corn,
whole
kernel |
4
to 6
minutes |
Freezer |
Bag |
3years |
10months |
|
Green
beans |
2
to 3
minutes |
Freezer |
Bag |
3years |
10months |
|
Snow
peas |
1
to 2
minutes |
Freezer |
Bag |
3years |
10months |
|
Sugar
snap
peas |
1
to 3
minutes |
Freezer |
Bag |
3years |
10months |
|
|
Source
: Food marketing
Institute, January
2003
|
|
Preparing
Fruit for Vacuum Sealing
Soft or delicate fruits and berries
of all kinds should be individually
pre-frozen
for 1 to 2 hours until solidly frozen
before vacuum sealing in bags. For
example, slice stone fruits (peaches,
plums, nectarines, etc.) and place
slices on a cookie sheet and freeze,
then place solidly frozen pieces
in bag to vacuum seal. Berries can
be individually frozen as above
before vacuum sealing in a bag then
freezing or vacuum-sealed fresh
in a Zeropack Canister and stored
in refrigerator.
|
Fruit,
Cut |
Whereto store |
Recommended
storage
system |
Zeropack
system
storage
Time |
Normal
Recommened
Storage
Time |
|
Apricots,
Nectarines
Peaches,
Plums |
Freezer |
Bag |
1~3years |
2
to 3
minutes |
|
Berries |
Freezer |
Canister |
10
days |
1
to 2
days |
|
|
Source : Food
Marketing Institute,
January 2003
|
|
|