Fermentation (Lacto-Fermentation)

Submerging vegetables in a salt brine creates anaerobic conditions where naturally-occurring lactic acid bacteria thrive, lower the food's pH below 4.6, and preserve it while producing a tangy, probiotic-rich result — different from canning (sterilized, heat-killed bacteria) but just as shelf-stable. Any vegetable ferments: cucumbers, beets, radishes, cabbage, peppers, corn, mixed vegetables.

Base Method (works for any vegetable)

1. Mix a 3% salt brine by weight (roughly 1 tbsp sea or pickling salt per quart of water — not iodized table salt).
2. Wash and chop vegetables — shred for a sauerkraut-style ferment, or cut into wedges/spears for whole-piece ferments.
3. Pack tightly into a jar with any aromatics (garlic, dill, peppercorns, mustard seed).
4. Pour brine over the vegetables until fully submerged, with at least an inch of brine above them.
5. Keep everything submerged — a fermentation weight, a folded cabbage leaf, or a smaller jar inverted inside the larger one all work. This is the single most important step.
6. Cover with an airlock lid, or cheesecloth secured with a rubber band, and leave at 65–75°F.
7. Within 24–48 hours you'll see bubbling and cloudy brine — that's fermentation happening, not a problem.
8. Taste after a week with a clean fork (not fingers) and keep tasting weekly — flavor gets tangier through week 3–4. Stop whenever you like it, then refrigerate.

A Few Specific Ferments

• Fermented pickles: small cucumbers + dill + garlic + peppercorns, 1–3 weeks (shorter stays crisper).
• Fermented beet wedges: ¼-inch wedges + garlic, 2–4 weeks (beets are dense and take longer).
• Sauerkraut base: shredded cabbage tossed with 1.5–2% salt by weight and pressed down until its own juices make the brine, 2–4 weeks.
• Fermented radishes: sliced thin, 1–2 weeks — the shortest ferment on this list.

Caveats

• A white film (kahm yeast) on the surface is harmless — skim it off. It's a sign vegetables were briefly exposed to air, not a safety problem.
• Fuzzy green, black, or white mold means discard the batch — mold can produce toxins, and it only takes hold if vegetables were exposed to air.
• Trust your nose: good ferment smells tangy and sour; rotten smells rotten. If there's any doubt, throw it out.
• Fermentation at 3–5% salt with vegetables kept fully submerged is genuinely safe — the low pH from lactic acid is what keeps pathogens from getting a foothold.

Skip Entirely

Letting vegetables float above the brine line and assuming it'll be fine — exposure to air is the one condition that actually invites mold in an otherwise very safe process. Weigh them down properly from the start.