Testing for Dryness
Food must be carefully monitored
near the end of the dehydration
process to prevent overdrying.
Overdried foods lose quality in
texture, nutrition and taste. To test
for dryness, remove a piece of food,
allow it to cool, and feel with your
fingers to determine dryness:
•Fruits should be pliable and
leathery with no pockets of mois-
ture. To check if fruit is dry, tear a
piece in half and watch for mois-
ture beads along the tear. If there
aren’t any, it is sufficiently dry for
long term storage.
•Fruit rolls should be leathery
with no sticky spots.
•Jerky should be tough but
not brittle.
•Dried fish should be tough. If the
fish is high in fat, it may appear
moist due to the high oil content.
•Vegetables should be tough
or crisp.
Packaging
Some pieces may dry in a shorter time
than others and should be removed
and placed in an airtight container
while allowing the rest of the pieces
to remain in the dehydrator until
sufficiently dry.
Package all dried foods promptly to
prevent contamination by insects and
to prevent stickiness and rehydration
caused by humidity. Store dried foods
in airtight, moisture proof containers.
Home vacuum packaging devices are
ideal for packaging dried foods. They
extend the shelf life of dried foods
3 to 4 times. Home vacuum packaging
can be done in bags or glass jars.
Manufacturers’ bags, designed for use
in home vacuum-packaging, are
moisture proof and airtight. Glass jars
are vacuum sealed using a lid with a
rubber gasket. Only glass jars which
have been tempered for canning
should be used. Other storage jars
may explode under the pressure of
vacuum packaging. Be sure to follow
the manufacturers’ instructions.
Bag sealers can also be used to pack-
age dehydrated foods. Bag sealers do
not remove air within the package,
but the bags are moisture-proof and
airtight. Squeeze the pouch tightly
against the food to remove as much
air as possible before sealing.
Plastic freezer bags can be used.
Plastic storage bags not labeled for
use in the freezer generally are not
airtight nor moisture-proof and
should not be used to store dried
foods.
Since most packaging materials are
transparent, store packaged dried
foods in a plastic or metal container
which will not allow the light to
penetrate. Do not store fruits and
vegetables together in the same stor-
age container because flavor and
moisture may transfer.
Fruit rolls are best if removed while
still warm. Wrap in plastic wrap and
place in airtight moisture-proof
containers for storage.
Onions and tomatoes are especially
prone to absorb moisture from the air
and should be packaged immediately
after removing from the dehydrator.
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