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Brine calculator

Fermenting is all about salt. Too little and unwanted bacteria get a chance; too much and fermentation slows down. Weigh your vegetables and the calculator works out the salt.

How are you fermenting?
Vegetables, trimmed and weighed
1000 g
Salt
We don’t go below 2 percent: under that, unwanted bacteria can take over.

This much salt

g salt
Amounts
AmountIngredientNote
1000 gvegetablesabout 2.2 lb
20 gpure salt, no iodine or anti-caking agents2%

Weigh the salt: a tablespoon of salt weighs very differently from one kind to the next.

Fermenting safely

  • Keep the vegetables under the liquid; a small weight or a zip-top bag filled with brine helps.
  • A white film on top is usually kahm yeast. Skim it off.
  • A strong, sour or sulfurous smell is normal. If it smells rotten, or you see fuzzy or colored mold, throw it all out.
  • Ferment at 64 to 72 °F (18 to 22 °C), then keep it cool.

Recipes that use this calculator