Vegetable · stem

Lacto-fermenting celery: 3.00% salt, 7.0days at 68 °F

High water content and mild flavor make celery a good support vegetable in mixed ferments. Stalks retain crunch well. Primary use in Italian-American giardiniera.

Salt calculator

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

grams
%

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

30g salt
5.27 tsp 1.76 tbsp 1.06 oz

Based on Fine sea salt at 5.69 g/tsp.

Safe range for lacto-fermentation. 2% is the most common default for cabbage, kimchi and pepper mash.

All salt grains
GrainGramsTeaspoonsTablespoons
Diamond Crystal kosher30 g10.563.52
Morton kosher30 g6.252.08
Fine sea salt30 g5.271.76
Pickling / canning30 g5.451.82
Default salt
3.00 %
Salt range
2.50% – 3.50%
Time @ 68 °F
7.0 days
Target pH
3.80
Water content
~95%
Preferred styles
giardiniera component, brine pickle

Technique

Slice 5mm. Use as 20% component in giardiniera with cauliflower, carrot, pepperoncini. 3% brine + oregano + fennel seed. 10-14 days. Standalone: shorter ferment (5-7 days) for snacking sticks.

Source: Serious Eats — giardiniera. Last verified 2026-05-17.

Frequently asked questions

What percent salt for fermenting celery?

3.00% by weight is the default for celery (workable range 2.50%–3.50%). For 1000g celery, that's 30.0g salt. Use non-iodised salt and weigh in grams — teaspoon equivalences vary by salt grain. Source: Serious Eats — giardiniera.

How long to ferment celery?

7.0 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 celery?

Slice 5mm. Use as 20% component in giardiniera with cauliflower, carrot, pepperoncini. 3% brine + oregano + fennel seed. 10-14 days. Standalone: shorter ferment (5-7 days) for snacking sticks.

What category is celery for fermentation?

Celery is a stem vegetable. High water content and mild flavor make celery a good support vegetable in mixed ferments. Stalks retain crunch well. Primary use in Italian-American giardiniera. Preferred fermentation style: giardiniera-component, brine-pickle.