Lacto-fermenting brussels sprouts: 2.50% salt, 10.0days at 68 °F
Cousin to cabbage, Brussels sprouts ferment into a crunchy, tangy snack with a deep umami finish. Sandor Katz documents them halved or quartered in a brine; the cabbage-family Lactobacillus produces clean acidity. Best when fermented young, when sprouts are firm and still tightly closed. Loose, yellowing sprouts disintegrate during fermentation.
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Trim outer leaves and stem-end. Halve lengthwise (or quarter if large). Pack tightly into a jar with two crushed garlic cloves, a teaspoon of black peppercorns, and one bay leaf per quart. Cover with 2.5% brine (25g salt per liter water). Weight below brine, leave 1 inch headspace. Ferment 7-14 days at 65-72°F. Taste from day 7. Refrigerate when balanced. Soft outer layer is normal; mushy texture throughout indicates over-fermentation.
What percent salt for fermenting brussels sprouts?
2.50% by weight is the default for brussels sprouts (workable range 2.00%–3.50%). For 1000g brussels sprouts, that's 25.0g salt. Use non-iodised salt and weigh in grams — teaspoon equivalences vary by salt grain. Source: Katz — Wild Fermentation (2nd ed., p. 90).
How long to ferment brussels sprouts?
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 3.50 or below indicates complete primary fermentation.
What's the best technique for fermenting brussels sprouts?
Trim outer leaves and stem-end. Halve lengthwise (or quarter if large). Pack tightly into a jar with two crushed garlic cloves, a teaspoon of black peppercorns, and one bay leaf per quart. Cover with 2.5% brine (25g salt per liter water). Weight below brine, leave 1 inch headspace. Ferment 7-14 days at 65-72°F. Taste from day 7. Refrigerate when balanced. Soft outer layer is normal; mushy texture throughout indicates over-fermentation.
What category is brussels sprouts for fermentation?
Brussels Sprouts is a leafy vegetable. Cousin to cabbage, Brussels sprouts ferment into a crunchy, tangy snack with a deep umami finish. Sandor Katz documents them halved or quartered in a brine; the cabbage-family Lactobacillus produces c… Preferred fermentation style: brine-pickle, lacto-ferment.
The kit for fermenting Brussels Sprouts
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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