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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.
β οΈ Rules that prevent botulism and poisoning
- You can't see, smell or taste botulism. Meat, fish, poultry, milk, beans and every vegetable except most tomatoes are low-acid. They go in jars only in a pressure canner. There is no tested way to can them without one, so dry, ferment, salt or cellar them instead.
- Use a tested recipe, set for our elevation (about 1,300 ft): the 15-lb weight or 11 lb on a dial for pressure canning; water-bath times plus 5 minutes.
- Boil home-canned meat and vegetables 11 minutes before anyone tastes them.
- Never taste a suspect jar. Bulging lid, leaks, spurting, bad smell or mold: detoxify it and throw it out. Low-acid jars can be deadly with no signs at all.
- Weigh curing nitrite exactly. Too much is poison.
- Smoke and drying don't cook food. Cold-smoked fish is raw. Jerky must reach 160 Β°F.
Clostridium botulinum spores are on most fresh food. Sealed in a jar of moist, low-acid food at 40β120 Β°F with no air, they can make a deadly toxin in 3β4 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 240β250 Β°F, which takes a pressure canner (what one looks like). A boiling-water canner would need 7β11 hours, and no such times have been tested (USDA Guide 1, p. 8).
Signs of botulism, usually 18β36 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.
π 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.
| 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 2,001β4,000 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 217β218 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. 11β12) |
| 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).
π 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.
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. 20β22; PNW 421, p. 9; step-by-step drawing):
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. 6β8, 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) |
π 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.
Test seals after 12β24 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, 50β70 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. 26β27). Also badly dented, bulging, rusty or leaking store cans (USU, p. 40).
Getting rid of a suspect jar (USDA Guide 1, p. 27):
π Go deeper: FN2028 Put a Lid On It β one-time and reusable lids; USDA Guide 1, p. 26 β storage and spoilage.
Water bath (USDA Guide 1, p. 18; illustrated steps): keep 1β2 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 12β24 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:
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).
π 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.
| 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. 6β8):
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. 3β4 weeks at 70β75 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 60β70 Β°F.
Heavy salting, no fermenting (1918): 15β25% brine keeps beans, beets, corn, chard and cabbage until spring. Soak in fresh water to remove the salt, then cook (1918 bulletin, p. 7).
π Go deeper: USDA Guide 6 β tested kraut and pickle recipes; K-State MF3491 β salt for any vegetable; Wikipedia: Lactic acid fermentation.
Trays and solar dryers are in the Root Cellar guide.
A box drier with a window-sash lid and screened openings keeps out dust and insects and dries faster (USDA FB 984, p. 16).
π Go deeper: PNW 651 Drying Project Manual β fruit by fruit; Wikipedia: Food drying.
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.
π Go deeper: PNW 632 Making Jerky at Home Safely β tested methods and the hot-brine dip; Food From Scratch β jerky basics.
| Cold smoke | Hot smoke | |
|---|---|---|
| Heat | Smokehouse under 80β90 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. 1β3): brine 2β3 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. 1β3):
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).
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. 2β7):
π Go deeper: PNW 238 Smoking Fish at Home Safely β brines and temperatures; PNW 450 Canning Smoked Fish β shelf-stable smoked fish.
Cold is the key: 36β40 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 40β45 Β°F for 3β4 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 (4β6 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:
π 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.
π Go deeper: USDA Home Methods of Preserving Eggs β water glass and lime; USDA FB 1424 Making Vinegar.
π 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.
Look before you try it. πΌοΈ = drawings in the books on this drive; π· = 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