Lacto-fermenting eggplant: 3.50% salt, 10.0days at 68 °F
A denser, spongy fruit-vegetable traditionally fermented across the Caucasus and Middle East (Georgian stuffed fermented eggplant, Persian torshi). Its airy flesh absorbs brine readily, so it is salted firmly at 3.5-5% and usually blanched briefly first to collapse the sponge and prevent soft, off textures.
Salt calculator
Enter your vegetable weight and a salt percentage. We return the exact salt mass in grams, plus teaspoons for each common grain.
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Grain matters: one teaspoon of Diamond Crystal weighs half as much as one teaspoon of fine sea salt. Weigh in grams when you can.
Blanch small whole or halved eggplants 3-4 minutes until just pliable, then cool and press out excess water. Pack into a 3.5-5% salt brine (35-50g salt per liter), often stuffed with garlic, herbs, and chili. Keep fully submerged and ferment 7-14 days at 65-72°F. The higher salt and pre-blanching are important steps for this dense, low-acid vegetable.
3.50% by weight is the default for eggplant (workable range 3.00%–5.00%). For 1000g eggplant, that's 35.0g salt. Use non-iodised salt and weigh in grams — teaspoon equivalences vary by salt grain. Source: NCHFP (UGA) — fermented brine-pickle method.
How long to ferment eggplant?
10.0 days at 68°F (20°C). Cooler kitchens (60-65°F) slow fermentation; warmer kitchens (75-80°F) roughly halve the time per 10°F increase. Start tasting from day 5; target pH 4.00 or below indicates complete primary fermentation.
What's the best technique for fermenting eggplant?
Blanch small whole or halved eggplants 3-4 minutes until just pliable, then cool and press out excess water. Pack into a 3.5-5% salt brine (35-50g salt per liter), often stuffed with garlic, herbs, and chili. Keep fully submerged and ferment 7-14 days at 65-72°F. The higher salt and pre-blanching are important steps for this dense, low-acid vegetable.
What category is eggplant for fermentation?
Eggplant is a fruit vegetable vegetable. A denser, spongy fruit-vegetable traditionally fermented across the Caucasus and Middle East (Georgian stuffed fermented eggplant, Persian torshi). Its airy flesh absorbs brine readily, so it is salte… Preferred fermentation style: torshi, lacto-ferment, brine-pickle.
The kit for fermenting Eggplant
A short, honest kit for lacto-fermentation. The scale is the one that matters most — everything here is by weight.
Digital kitchen scale (0.1 g)Salt % is by weight, not volume — a 0.1 g scale is what makes the math above accurate.View on Amazon →
Glass fermentation weightsKeep vegetables submerged under the brine line so they ferment safely without mould.View on Amazon →
Airlock fermentation lidsLet CO₂ escape while keeping oxygen out — wide-mouth lids that fit standard jars.View on Amazon →
Wide-mouth mason jarsThe workhorse vessel for kraut, kimchi and brine pickles — 1 qt and ½ gal sizes.View on Amazon →
Pickling / fine sea saltPure salt with no iodine or anti-caking agents, which can cloud brine and inhibit fermentation.View on Amazon →
Stoneware fermentation crockFor scaling past the jar — a water-sealed crock for 5 L+ batches with built-in weights.View on Amazon →
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