Friday, February 24, 2012

Dry-Pack Canning in Mason Canning Jars

I would like to share some basic information on how to prepare meals in jars using Dry-Pack Canning.

Food that is dry (less than 10% moisture) and low fat can be dry packed in glass canning jars using oxygen absorbers. It is best to use quart or half gallon jars rather than pint jars or smaller.

1. Check canning jars for a smooth mouth rim. Do not use jars with nicks or cracks in the rim.
2. Wash jars and thoroughly dry before using.
3. Heat canning jar lids in water according to package directions.
4. Fill jars with food leaving 1/2 to 1/4-inch headspace. A canning funnel helps.
5. Remove oxygen absorbers from their container – one for each jar – and reseal the container.
6. Put one oxygen absorber in each jar of food, poking it down into the food or along the side of the jar.
7. Wipe the jar rim with a clean, dry cloth or paper towel to make sure no food or food dust is on the rim.
8. One at a time, remove a jar lid  from the hot water and dry thoroughly. Place on a jar and screw down firmly with a canning jar ring.
9. When the lid sucks in and “pings” or “clicks” the jar is sealed. This could take a few minutes or hours depending on the density of the food and how full the jar is.
10. Label and date jars.
11. Store in a fairly cool and dark place.

Do not dry pack home dried food unless it is crisp dry and snaps when bent. Moisture and lack of oxygen can provide growth opportunities for botulism producing bacteria.
Foods that can be dry packed in canning jars include white rice, wheat and other whole grains, oatmeal, dry beans, powdered milk, white flour, pasta without egg, freeze dried foods, dehydrated foods that are crisp enough to snap, TVP, cheese powder, gelatin, low fat ready-to-eat cereals, and low fat or fat free pretzels. Sugar may be stored in jars but absorbers are not necessary.
Some foods may keep longer when dry packed but will probably not have the shelf life of unprocessed, low moisture, low fat foods. These include cornmeal, nuts and seeds. These foods should be used regularly to avoid rancidity.


  1. Where do you purchase your fd foods? Is the canning method the same A's vacuum sealing the jar?

  2. On the home page of my blog on the right hand side there is a photo of Thrive FD Food and it also says Shop now...Or you can look and the online cataloge that is above it.

  3. Where do you purchase the oxygen absorbers?

  4. Why do you state that quart & half-gallon sized jars are better? If you're making these for a 1 or 2-person storage plan, wouldn't it be better to use a pint than to have leftovers that might spoil? Is there a sealing/O2 absorption concern with using a smaller jar? Could you just use a smaller than 300cc O2 absorber, or a vacuum-sealer jar attachment?

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