Amelia Jeanroy - Canning & Preserving For Dummies

If you want to reprocess jars that didn’t seal, you can do that. But keep in mind that reprocessing your food takes almost as much time as making the recipe from the beginning. The only time to consider reprocessing jars is if every jar in the kettle doesn’t seal.

To reprocess unsealed jars, follow these steps:

1 Remove the single-use lid and discard it. If using a reusable lid, inspect it for damage, wash and sanitize the lid and gasket, and try again.

2 Check the edge of the jar for damage.If the jar is damaged, discard the food in case a broken piece of glass fell into the food.

3 Discard any damaged jars.

4 Reheat the food.

5 Follow the step-by-step instructions in this chapter for filling your jars, releasing air bubbles, and processing your sterilized, filled jars.

6 Reprocess the filled jars for the recommended time for your recipe.

7 Check the seal after your jars have completely cooled.

After you’ve tested the seal and know that it’s good (see the preceding section), it’s time to store your canned food. To do that, follow these steps:

1 Remove the screw bands from your sealed jars.

2 Wash the sealed jars and the screw bands in hot, soapy water.This removes any residue from the jars and screw bands.

3 Label your filled jars, including the date processed.

4 Store your jars, without the screw bands, in a cool, dark, dry place.

When you’re canning at an altitude higher than 1,000 feet above sea level, you need to adjust your processing time (see Table 4-1). Because the air is thinner at higher altitudes, water boils below 212 degrees. As a result, you need to process your food for a longer period of time to kill any microorganisms that can make your food unsafe.

TABLE 4-1High-Altitude Processing Times for Water-Bath Canning

If you live higher than 1,000 feet above sea level, follow these guidelines.

For processing times of less than 20 minutes: Add 1 additional minute for each additional 1,000 feet of altitude.

For processing times of more than 20 minutes: Add 2 additional minutes for each 1,000 feet of altitude.

If you don’t know your altitude level, you can get this information from many sources. Try contacting your public library, a local college, or the cooperative extension service in your county or state. Or go to www.whatismyelevation.com and simply type in your Zip code.

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