Fermentation Salt Calculator

Find the salt for a brined vegetable ferment from the veg and water weights.

Usage Tip

Too little salt risks spoilage; too much slows the good bacteria.

Salt Needed
g salt
For the ferment
THE MATH
salt = (vegetables + water) × salt %
Vegetable ferments usually run 2–3% salt of the total weight.
Keep vegetables submerged below the brine to prevent mould during fermenting.
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.