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Selecting, Preparing and Canning Winter Vegetables
Pumpkins and Winter Squash - Cubed
Quantity: An average of 16 pounds is needed per canner load
of 7 quarts; an average of 10 pounds is needed per canner load of 9 pints – an
average of 2¼ pounds per quart.
Quality: Pumpkins and squash should have a hard rind and
stringless, mature pulp of ideal quality for cooking fresh. Small size pumpkins
(sugar or pie varieties) make better products.
Please read Using
Pressure Canners before beginning. If this is your first time canning, it is
recommended that you read Principles of Home
Canning.
For why we say not to mash or puree the squash, read more about the caution.
Procedure: Wash, remove seeds, cut into 1-inch- wide slices,
and peel. Cut flesh into 1-inch cubes. Boil 2 minutes in water. Caution:
Do not mash or puree. Fill jars with cubes and cooking liquid, leaving
1-inch headspace.
Adjust lids and process following the recommendations in Table 1 and Table 2.
For making pies, drain jars and strain or sieve cubes.
Table 1. Recommended process time for
Pumpkin and Winter Squash in a dial-gauge pressure
canner. |
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Canner Pressure (PSI) at Altitudes of |
Style of Pack |
Jar Size |
Process Time |
0 - 2,000 ft |
2,001 - 4,000 ft |
4,001 - 6,000 ft |
6,001 - 8,000 ft |
Hot |
Pints |
55 min |
11 lb |
12 lb |
13 lb |
14 lb |
Quarts |
90 |
11 |
12 |
13 |
14 |
Table 2. Recommended process time for
Pumpkin and Winter Squash in a weighted-gauge pressure
canner. |
|
Canner Pressure (PSI) at Altitudes of |
Style of Pack |
Jar Size |
Process Time |
0 - 1,000 ft |
Above 1,000 ft |
Hot |
Pints |
55 min |
10 lb |
15 lb |
Quarts |
90 |
10 |
15 |
Home Preserving Pumpkins
Pumpkins offer far more than a door-stop at Halloween. This season is also the prime time to find and use sugar or pie pumpkins, the best for cooking and baking. Pumpkin seeds from any pumpkin can also be dried and roasted.
Freezing Pumpkins
Freezing is the easiest way to
preserve pumpkin, and it yields the best quality product. Select full-colored
mature pumpkin with fine texture (not stringy or dry). Wash, cut into
cooking-size sections and remove seeds. Cook until soft in boiling water, in
steam, in a pressure cooker, or in an oven. Remove pulp from rind and mash. To
cool, place pan containing pumpkin in cold water and stir occasionally (So
Easy to Preserve, 2006). Pack into rigid containers leaving headspace,
and freeze.
Drying Pumpkin and Pumpkin
Seeds
Wash, peel, and remove fibers and seeds from pumpkin (or
Hubbard squash) flesh. Cut into small, thin strips no more than one-inch wide by
1/8-inch thick. Blanch strips over steam for 3 minutes and dip briefly in cold
water to stop the blanching action. There is no need to cool to room
temperature prior to drying. Drain excess moisture. Dry the strips in an
electric dehydrator until brittle.
Pumpkin also makes excellent dried
vegetable leather. Purée cooked pumpkin and strain. Add honey and spices, and
then dry on a home food dehydrator tray.
http://www.homefoodpreservation.com/how/dry/veg_leathers.html.
Drying seeds and roasting seeds are two different processes. To dry,
carefully wash pumpkin seeds to remove the clinging fibrous pumpkin tissue.
Pumpkin seeds can be dried in the sun, in an electric dehydrator at 115-120°F
for 1 to 2 hours, or in an oven on a very low, warm temperature only, for 3 to 4
hours. Stir them frequently to avoid scorching. Dried seeds should not be stored
with any moisture left in them.
To roast the seeds, take dried pumpkin seeds, toss with oil and/or salt
and roast in a preheated oven at 250°F for 10 to 15
minutes.
Pickling Pumpkin
Pumpkin can be used in
pickled recipes such as salsas, chutneys, and relishes; however, your recipes
for these must be treated as fresh prepared foods and kept refrigerated. We do
not have tested recipes and procedures to recommend for safely canning these
types of products by either the boiling water or pressure canning method.
Pumpkin Preserves
Gelled preserves rely on the
natural acidity present in most fruits for safe food preservation. Most fruits
have natural acids so resulting jams or jellies can be safely canned in a
boiling water bath process. Pumpkin, however, is a low acid vegetable and cannot
be safely canned in the boiling water bath process. A jam or sweetened preserve
would have to have enough sugar and/or added acid to be treated safely without
concerns about botulism. A certain acidity level is also required to cause the
pectin molecule to form a gel structure. The USDA and Georgia Cooperative
Extension currently do not have any tested recipes to recommend for safely
canning pumpkin preserves (jams, jellies, conserves, or pumpkin butter) and
storing them at room temperature. These pumpkin products must be stored in the
refrigerator or freezer and treated the same as fresh pumpkin. Refer to http://www.homefoodpreservation.com/publications/uga/pumpkin_butter.html
for more information.
Think Safety
Think safety
when planning to preserve pumpkins. Pumpkin is a low acid vegetable and requires
special attention to preparation and processing. Use excellent sanitation in
handling the fresh or preserved pumpkin. Do not let cut pumpkin sit out at room
temperature for more than 2 hours during preparation prior to preserving. We
have no properly researched procedures to recommend for home canning of pumpkin
butters or pickled pumpkin products such as salsas, chutneys and relishes;
recipes you try should be served immediately or stored under refrigeration at
all times. |
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