4% salt for Brussels Sprouts

10.0 days at 68 °F · pH target 3.50 · outside typical range

Salt calculator

Enter your vegetable weight and a salt percentage. We return the exact salt mass in grams, plus teaspoons for each common grain.

Vegetable weight

grams

Salt percentage

Salt grain

Grain matters: one teaspoon of Diamond Crystal weighs half as much as one teaspoon of fine sea salt. Weigh in grams when you can.

40g salt

7.03 tsp 2.34 tbsp 1.41 oz

Based on Fine sea salt at 5.69 g/tsp.

Flavour-forward. Ferment will be slower; brine will taste salty. Good for pickles and hot-sauce mashes that need long shelf life.

All salt grains

Grain	Grams	Teaspoons	Tablespoons
Diamond Crystal kosher	40 g	14.08	4.69
Morton kosher	40 g	8.33	2.78
Fine sea salt	40 g	7.03	2.34
Pickling / canning	40 g	7.27	2.42

About Brussels Sprouts

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.

Fermentation data

Default salt: 2.5%(you are viewing 4%)
Salt range: 2–3.5%
Time at 68°F: 10.0 days
pH target: 3.50
Water content: 86%
Preferred styles: brine pickle, lacto ferment

Note: 4% is outside the typical range for Brussels Sprouts (2–3.5%). The recommended default is 2.5%. View 2.5% + Brussels Sprouts.

Technique

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.

Salt level notes at 4%

Never use 4% for final dry-salted sauerkraut — way too salty. Only for pre-ferment rinse stages or for dilute brines (kvass) where the resulting beverage is drunk diluted or cooking vinegar.

Safety: Flavour-forward. Ferment will be slower; brine will taste salty. Good for pickles and hot-sauce mashes that need long shelf life.

Explore other salt levels for Brussels Sprouts

1.5% — minimum safe
1.8% — low-salt sauerkraut
2% — standard sauerkraut
2.25% — lightly-salted brine-pickle
2.5% — standard hot sauce
3% — brine-pickle standard
3.5% — kimchi rinse stage
4% — traditional kimchi / kvass (current)

Sources

Katz — Wild Fermentation (2nd ed., p. 90)
NCHFP (UGA) — Fermented and Pickled Products
Sandor Katz, The Art of Fermentation (Chelsea Green, 2012)

For educational use only. Consult your local food safety authority for commercial production.