πŸ“˜ Guides β€Ί 🍞 Food Β· πŸ†˜ Emergency Β· πŸ“‡ Index A–Z

πŸ«™ Preserving Food Without a Freezer

How to keep a garden, a deer or a run of salmon through the year with no power: canning, jars and lids when the stores are gone, jam, pickles and sauerkraut, drying, jerky and pemmican, smoking and salting fish, curing meat, and keeping lard, eggs and vinegar. The books are in Food-Storage\ (Canning, Curing-Smoking, Drying, Fermenting-Eggs-Vinegar), the USDA canning guides in Gardening-Food\, game and fish canning in Hunting\ and Fishing\, and vinegar, lard and pork in Homestead-Skills\Food-Crafts-Tools. Cellar storage is in the Root Cellar guide; how much to put up is in the Food Security guide.

⚠️ Rules that prevent botulism and poisoning


☠️ Botulism: why low-acid food needs a pressure canner

Clostridium botulinum spores are on most fresh food. Sealed in a jar of moist, low-acid food at 40–120 Β°F with no air, they can make a deadly toxin in 3–4 days (USDA Guide 1, p. 6). The food can look, smell and taste normal (PNW 361, p. 2).

Acid foods (pH 4.6 or lower) Low-acid foods
Fruit, jam, pickles, sauerkraut, tomatoes with acid added Meat, fish, poultry, milk, beans, every fresh vegetable, most soups and stews
Boiling-water or steam canner Pressure canner only

The spores die only at 240–250 Β°F, which takes a pressure canner (what one looks like). A boiling-water canner would need 7–11 hours, and no such times have been tested (USDA Guide 1, p. 8).

Signs of botulism, usually 18–36 hours after eating: double or blurred vision, drooping eyelids, slurred speech, trouble swallowing, dry mouth and weakness, then paralysis spreading down to the breathing muscles (FDA Bad Bug Book, p. 110). Bad cases need weeks on a breathing machine, so prevention is everything. No honey for babies under 12 months (p. 111).

Boil before eating: 10 minutes plus 1 minute per 1,000 ft above 1,000 ft, so 11 minutes here, timed from a full boil. This destroys the toxin, not the spores (PNW 361, p. 2).

No pressure canner? Don't can low-acid food at all. Keep beans, corn and grain dry and roots in the cellar; ferment or salt vegetables; jerk, cure or salt meat; salt, dry, or smoke-and-can fish; and keep animals alive until you need them (general practice).

Canned fruit, tomatoes, vegetables and meat need no sugar or salt for safety, only flavor (USDA Guide 1, p. 31). Jam, pickles and ferments do.

πŸ“š Go deeper: USDA Guide 1, p. 8 β€” acid, heat and why the pressure canner; FDA Bad Bug Book, p. 110 β€” botulism symptoms; Wikipedia: Home canning.

πŸ”οΈ Settings for the Illinois Valley (about 1,300 ft)

What Setting here Source
Weighted-gauge pressure canner (dial vs. weighted) 15-lb weight (above 1,000 ft) PNW 421, p. 12
Dial-gauge pressure canner 11 lb up to 2,000 ft; 12 lb at 2,001–4,000 ft PNW 421, p. 12
Boiling-water canner Sea-level time + 5 minutes PNW 652, p. 15
Sterilizing empty jars Boil 11 minutes USDA Guide 1, p. 15
Jelly point, no added pectin About 217–218 Β°F USDA Guide 7, p. 5

Example pressure times here (15-lb weight or 11-lb dial):

Food Pints Quarts
Snap beans 20 min 25 min
Beets 30 min 35 min
Meat or venison chunks 75 min 90 min
Meat stock 20 min 25 min
Salmon or steelhead (no liquid added) 100 min 160 min, only with Guide 5's special quart steps (3 quarts water, 20-min heat-up, 10-min vent) (Guide 5, pp. 11–12)
Lightly smoked fish 110 min not tested

(USDA Guide 4, p. 9; Guide 5, p. 7; PNW 194, p. 5; PNW 450, p. 3.)

Tomatoes need added acid, even in a pressure canner: per quart, 2 Tbsp bottled lemon juice or Β½ tsp citric acid (half that per pint). Never can tomatoes from frost-killed vines, which matters after our October frosts (USDA Guide 3, p. 5). Stockpile citric acid; it keeps for years dry. When it's gone, sun-dry tomatoes in August (general practice).

πŸ“š Go deeper: USDA Guide 4 β€” every vegetable, with altitude columns; Guide 5 β€” meat, game and fish; PNW 361 β€” canning venison and game.

♨️ Running a pressure canner off-grid

Choose a weighted-gauge canner. It never needs testing. A dial gauge must be tested yearly; one reading high gives unsafe food (PNW 421, p. 5). The canner must hold at least 4 quart jars.

Every batch (USDA Guide 1, pp. 20–22; PNW 421, p. 9; step-by-step drawing):

  1. 2–3 inches of hot water, or 4–5 inches for fish and other long processes. Jars on the rack (photo).
  2. Lock the lid, weight off. Heat until steam pours out, then vent a full 10 minutes. Put the weight on.
  3. Start timing when the weight jiggles. If pressure ever drops below the target, bring it back up and start the whole time over.
  4. Turn off the heat and let it cool by itself. Never cool it with water. At zero pressure, take off the weight, wait 10 minutes, and open the lid away from your face.

Four panels of a weighted-gauge pressure canner: jars on the rack in 2 to 3 inches of water; lid locked and steam venting for 10 minutes; the 15-pound weight on and jiggling while you time; heat off, cooled to zero, weight off and a 10-minute wait before opening Every batch, in order; if the pressure drops, the timing starts over (a diagram drawn for this guide).

On a wood stove, campfire or outdoor burner there is no tested method. Canner makers forbid outdoor LP burners and any burner over 12,000 BTU. In Utah State tests, canners boiled dry within minutes and warped, and cold outdoor air breaks jars and spoils seals (WSU flyer, p. 1). Never "can" in any oven (PNW 361, p. 2).

If a wood range is your only heat (general practice: untested, so the risk is yours):

Care (PNW 421, pp. 6–8, 12): stock spare gaskets and safety (overpressure) plugs now (where they sit). Replace a gasket that's worn, stretched or hardened. Small steam leaks are fine if pressure holds; add extra water. Clean the vent with a string. Store it dry, lid upside down, not locked.

If this goes wrong Do this
Steam pouring out at the lid Replace the gasket
Jars under-processed (boiled dry, lost the time) Reprocess within 24 hours with new lids for the full time, or throw them out (PNW 450, p. 4)
A jar didn't seal New lid and reprocess within 24 hours, or keep it cold and eat it within days (USDA Guide 1, p. 26)

πŸ“š Go deeper: PNW 421 Using and Caring for Your Pressure Canner β€” gauges, gaskets and plugs; PNW 653 Pressure Canning Project Manual β€” step-by-step lessons; Wikipedia: Pressure cooking.

πŸ₯« Jars, lids, storage and spoilage

Test seals after 12–24 hours, bands off. Press the middle: if it springs back, it's not sealed. Tap with a teaspoon: a ringing note means sealed; a dull one means not (USDA Guide 1, p. 25; photo).

Store cool, dark and dry, 50–70 Β°F, never above 95 Β°F; best quality within a year, though sealed jars stored this way stay safe longer (pp. 6, 12, 26; FN2028, p. 1). Attics, sheds and garages here pass 95 Β°F in summer, so use the cellar or under the house (general practice).

Throw it out if the lid is loose or bulging, food has streaked down the jar, bubbles rise, the liquid is cloudy or spurts, it smells bad, or there's mold (USDA Guide 1, pp. 26–27). Also badly dented, bulging, rusty or leaking store cans (USU, p. 40).

Getting rid of a suspect jar (USDA Guide 1, p. 27):

  1. Gloves on. Lay jars and lids on their sides in a big pot, cover with water, and boil 30 minutes. Then discard.
  2. Wipe every surface with 1 part bleach to 5 parts water, leave 30 minutes, and do it again.

πŸ“š Go deeper: FN2028 Put a Lid On It β€” one-time and reusable lids; USDA Guide 1, p. 26 β€” storage and spoilage.

πŸ‘ Water-bath and steam canning; jam without pectin

Water bath (USDA Guide 1, p. 18; illustrated steps): keep 1–2 inches of water over the jars. Start timing at a hard boil; if the boil stops, start over. At the end, take the lid off, wait 5 minutes, lift the jars out, and leave them alone 12–24 hours.

Steam canner (saves fuel and water): approved for acid foods only, using a tested boiling-water recipe. The total time must be 45 minutes or less. Vent until a full column of steam shows, and never open it to add water (K-State MF3241, p. 2).

Jam and jelly without bought pectin:

Two spoons of hot jelly: on the left the syrup runs off in separate drips, labeled "not yet jelly"; on the right it runs together and hangs off the edge in a sheet, labeled "sheeting of jelly" The spoon test: separate drips mean keep boiling; two drops that run together and sheet off the spoon mean it's done (USDA Guide 7, p. 6).

πŸ“š Go deeper: PNW 652 Boiling Water Canning Project Manual β€” fruit, tomatoes, jam and jelly step by step; USDA Guide 7 β€” tested jams and jellies; Wikipedia: Fruit preserves.

πŸ₯’ Pickles, sauerkraut and other ferments

Vinegar pickles Fermented pickles and kraut
Needs Store 5% vinegar, tested recipe Salt only
Homemade vinegar? No. Its strength is unknown Not needed
Long term Ends when vinegar runs out The way to go (general practice)

Never change a tested recipe's amounts, and never cut the salt in a ferment (USDA Guide 1, p. 28).

Sauerkraut (USDA Guide 6, pp. 6–8):

A sauerkraut crock cut away: shredded cabbage packed in the bottom, brine covering it, and a sealed plastic bag of brine resting on top as the weight The bag of brine keeps the cabbage under the brine; if it leaks, the brine stays salty (a diagram drawn for this guide).

Fermented dill pickles, per gallon: 4 lb of 4-inch cucumbers, Β½ cup salt, ΒΌ cup 5% vinegar, 8 cups water, dill. 3–4 weeks at 70–75 Β°F; skim scum often. Soft, slimy or bad-smelling: throw them out (USDA Guide 6, p. 7).

Any vegetable (K-State MF3491, p. 2): dry-salt shredded vegetables with 1 Tbsp non-iodized salt per 2 lb, or brine chunks in 1 tsp salt per cup of water (2 tsp for cucumbers or peppers). Keep them weighted under brine at 60–70 Β°F.

Heavy salting, no fermenting (1918): 15–25% brine keeps beans, beets, corn, chard and cabbage until spring. Soak in fresh water to remove the salt, then cook (1918 bulletin, p. 7).

πŸ“š Go deeper: USDA Guide 6 β€” tested kraut and pickle recipes; K-State MF3491 β€” salt for any vegetable; Wikipedia: Lactic acid fermentation.

β˜€οΈ Drying in our dry summers

Trays and solar dryers are in the Root Cellar guide.

Old drawing of a homemade solar drier, two views: a low box with a sloping glass lid and screened openings, and the same box with its front opened to show fruit drying on the screen A box drier with a window-sash lid and screened openings keeps out dust and insects and dries faster (USDA FB 984, p. 16).

πŸ“š Go deeper: PNW 651 Drying Project Manual β€” fruit by fruit; Wikipedia: Food drying.

πŸ₯© Jerky and pemmican

Safe jerky (PNW 632):

  1. Slice lean meat into strips.
  2. Bring it to 160 Β°F (poultry 165 Β°F): dip strips 1½–2 minutes in simmering brine before drying (p. 17), or heat dried strips 10 minutes at 275 Β°F (p. 9; photo).
  3. Dry at 145–155 Β°F, checked with a thermometer (which kind), until a cooled strip cracks but doesn't snap (p. 18; photo).
  4. Keep it sealed; it's best within 1–2 months (p. 21).

Don't sun-dry meat (USU, p. 59). Bear and cougar carry trichinosis; ten people caught it from cougar jerky (PNW 632, p. 8).

Pemmican: lean meat dried by sun, wind or smoke (not salt-cured), pounded, and mixed with hot rendered fat. About 6 lb of meat makes 1 lb, and it keeps for years, depending on the fat (Special Forces handbook, p. 174). There's no modern tested recipe, so (general practice): do the 160 Β°F step, then dry the meat brittle; render the fat until it stops bubbling; use about equal weights of meat and fat; firm tallow (deer, elk, beef) keeps better than lard; fully dry any berries. Store it cool, dark and airtight; throw it out if rancid or sour.

πŸ“š Go deeper: PNW 632 Making Jerky at Home Safely β€” tested methods and the hot-brine dip; Food From Scratch β€” jerky basics.

🐟 Fish: smoking, canning and salting

Cold smoke Hot smoke
Heat Smokehouse under 80–90 Β°F 150 Β°F inside the fish (160 Β°F better) for 30+ minutes
Cooked? No. It's raw Yes
Keeps Only if heavily salted and long-smoked About 2 weeks, refrigerated

Hot smoking (PNW 238, pp. 1–3): brine 2–3 lb of fish in 1 cup salt to 7 cups water for about an hour; let a tacky skin (pellicle) form; smoke with hardwood, never fir, pine or cedar (smoker layout). Here, use red alder, bigleaf maple, oak or fruitwood (general practice).

Smoke alone doesn't preserve. With no refrigerator, can it (PNW 450, pp. 1–3):

  1. Smoke lightly, up to 2 hours, to about 10% weight loss (weigh a piece before and after). Don't eat it yet.
  2. Can it the same day: pints, no liquid. This recipe uses 4 quarts of cool water in the canner; don't heat it or use less (p. 3). Vent 10 minutes, then 110 minutes at the 15-lb weight or 11-lb dial.

The old way, no canner (a small fish smokehouse; its plan): 24 hours of cold smoke keeps fish about 2 weeks; longer keeping takes 5+ days of smoke at or below 90 Β°F (Fishery Leaflet 18, p. 15). Our summers are too hot, so cold-smoke October to April, when fall Chinook and winter steelhead run. In fire season, smoke only on bare ground with water at hand (general practice).

Old drawing of a small fish smokehouse with its doors open to show screened trays, and a fire box dug into the ground outside it, with a buried flue carrying the smoke up through a perforated spreader inside The fire box sits outside the smokehouse; the smoke reaches the fish through a buried flue and a spreader (Bureau of Fisheries, p. 11).

Salting fish (Fishery Leaflet 18, pp. 2–7):

πŸ“š Go deeper: PNW 238 Smoking Fish at Home Safely β€” brines and temperatures; PNW 450 Canning Smoked Fish β€” shelf-stable smoked fish.

πŸ₯“ Curing pork and venison

Cold is the key: 36–40 Β°F for the whole cure. Warmer risks spoilage; colder slows the salt (USDA Leaflet 273, p. 5), and curing stops below 34 Β°F (NDSU, p. 4). Cure December to early February, when nights here fall to the low 30s (general practice). A ham is in trouble only if its inside stays above 40–45 Β°F for 3–4 days running (Kentucky, p. 3; parts of a ham; cuts of pork).

Cure (weigh it) Amounts Time Source
Country ham (rubbing in the cure) 8 lb salt + 2 lb sugar per 100 lb. Never more sugar than salt 2 days per lb Kentucky, p. 2
Nitrite dry cure 8 lb salt, 3 lb sugar, 2 oz sodium nitrate, Β½ oz sodium nitrite. 1 oz mix per lb of meat (1Β½ oz over 20 lb). Bacon: half the nitrite, and leave out the nitrate (USDA doesn't allow nitrate in bacon) 7 days per inch MSU P2648, p. 1
Venison dry cure Per 100 lb: 6 lb salt, 3 lb sugar, and 3 oz nitrate or 1 oz nitrite, rubbed on in thirds (days 1, 7, 14) 2 days per lb at 38 Β°F (4–6 weeks). A sweet-pickle brine instead: 3 days per lb NDSU, p. 4
Plain salt 1 part salt to 3 parts meat, strips 1 inch thick or less, weighted in a tub Cook it thoroughly CVM, p. 90

Smoke and store:

πŸ“š Go deeper: Kentucky How to Make a Country Ham β€” modern step by step; MSU P2648 β€” the nitrite cure and smoking; NDSU β€” venison cures; Wikipedia: Curing.

πŸ₯š Lard, confit, eggs and vinegar

πŸ“š Go deeper: USDA Home Methods of Preserving Eggs β€” water glass and lime; USDA FB 1424 Making Vinegar.

⚠️ Old advice in the library to ignore

πŸ“š Go deeper: USDA Guide 1, p. 10 β€” the methods USDA rejects, and why; K-State MF3241, p. 2 β€” the current rules for steam canners.

πŸ–ΌοΈ Pictures & diagrams

Look before you try it. πŸ–ΌοΈ = drawings in the books on this drive; πŸ“· = photos in the offline Wikipedia.

Canners, jars and lids

Jam, pickles and kraut

Drying, jerky and pemmican

Fish

Ham, bacon and the smokehouse

Lard, eggs and vinegar


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