2% salt for Napa Cabbage
5.0 days at 68 °F · pH target 4.00 · 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.
Grain matters: one teaspoon of Diamond Crystal weighs half as much as one teaspoon of fine sea salt. Weigh in grams when you can.
All salt grains
| Grain | Grams | Teaspoons | Tablespoons |
|---|---|---|---|
| Diamond Crystal kosher | 20 g | 7.04 | 2.35 |
| Morton kosher | 20 g | 4.17 | 1.39 |
| Fine sea salt | 20 g | 3.51 | 1.17 |
| Pickling / canning | 20 g | 3.64 | 1.21 |
About Napa Cabbage
The standard kimchi base. Napa cabbage has looser, more water-dense leaves than green cabbage. Traditional Korean preparation salts at higher % (3.5-5%) during a pre-ferment brining stage to draw water and soften leaves before the paste is added.
Fermentation data
- Default salt
- 4%(you are viewing 2%)
- Salt range
- 3.5–5%
- Time at 68°F
- 5.0 days
- pH target
- 4.00
- Water content
- 95%
- Preferred styles
- kimchi baechu, pao cai
Note: 2% is outside the typical range for Napa Cabbage (3.5–5%). The recommended default is 4%. View 4% + Napa Cabbage.
Technique
Quarter cabbage lengthwise. Dry-salt at 4% by quarter weight, rest 2-4 hours flipping halfway. Rinse 3x in cold water to remove excess salt. Toss with kimchi paste (gochugaru, ginger, garlic, fish sauce or alternative, carrot, scallion, radish). Pack into jar leaving 2cm headspace. Ferment 3-7 days at 65-70°F then transfer to fridge.
Salt level notes at 2%
Default. If in doubt, use 2.0%. The Noma Guide to Fermentation, NCHFP, Sandor Katz, and King Arthur all cite this as their baseline recommendation.
Safety: Safe range for lacto-fermentation. 2% is the most common default for cabbage, kimchi and pepper mash.
Explore other salt levels for Napa Cabbage
Sources
- Maangchi — traditional tongbaechu-kimchi
- 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.
The kit for fermenting Napa Cabbage
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 →
As an Amazon Associate, Fermentcalc earns from qualifying purchases at no extra cost to you. More on how this is funded.