Lacto-fermenting green (unripe) tomato: 4.00% salt, 10.0days at 68 °F
Unripe green tomatoes only. Ripe tomatoes are too acidic + too soft to lacto-ferment cleanly — they turn to mush and risk mold. Green tomato pickling is a Russian and Eastern European preservation tradition.
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.
Firm green tomatoes, whole or halved. 4% brine + 2 garlic cloves + dill flower heads + 1 bay leaf + 3 black peppercorns per pint. Cold ferment: 1 week at 60°F then transfer to fridge for 2 more weeks.
What percent salt for fermenting green (unripe) tomato?
4.00% by weight is the default for green (unripe) tomato (workable range 3.50%–5.00%). For 1000g green (unripe) tomato, that's 40.0g salt. Use non-iodised salt and weigh in grams — teaspoon equivalences vary by salt grain. Source: Sandor Katz — Wild Fermentation (green tomatoes).
How long to ferment green (unripe) tomato?
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 3.80 or below indicates complete primary fermentation.
What's the best technique for fermenting green (unripe) tomato?
Firm green tomatoes, whole or halved. 4% brine + 2 garlic cloves + dill flower heads + 1 bay leaf + 3 black peppercorns per pint. Cold ferment: 1 week at 60°F then transfer to fridge for 2 more weeks.
What category is green (unripe) tomato for fermentation?
Green (Unripe) Tomato is a fruit vegetable vegetable. Unripe green tomatoes only. Ripe tomatoes are too acidic + too soft to lacto-ferment cleanly — they turn to mush and risk mold. Green tomato pickling is a Russian and Eastern European preservation tra… Preferred fermentation style: brine-pickle-russian, torshi.
The kit for fermenting Green (Unripe) Tomato
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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