Vegetable · allium

Yellow Onion

Strong sulfur compounds mellow during fermentation. Results sweeter and milder than raw. Often fermented as half-moon slices or whole small pearl onions.

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.

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

Grain	Grams	Teaspoons	Tablespoons
Diamond Crystal kosher	30 g	10.56	3.52
Morton kosher	30 g	6.25	2.08
Fine sea salt	30 g	5.27	1.76
Pickling / canning	30 g	5.45	1.82

Default salt: 3.00 %
Salt range: 2.50% – 3.50%
Time @ 68 °F: 10.0 days
Target pH: 3.80
Water content: ~89%
Preferred styles: brine pickle, escabeche component

Technique

Slice thin (3mm) or use whole pearl onions. Cover with 3% brine + 1 bay leaf + 1 tsp coriander seeds per pint. 10-14 days. For mixed ferments, add at 20% of primary vegetable weight.

Source: Cultures for Health — lacto onions.