Pickling Brine Ratio Calculator

Brine percentage (also called salinity) is the weight of salt as a fraction of the weight of water, expressed as a percent. A 3.5 percent brine means 35 grams of salt per 1,000 grams (1 liter) of water. Fermentation recipes commonly use 2 to 5 percent depending on the vegetable and the desired result.

Multiply the water weight by the brine percentage divided by 100. For example, 2,000 grams of water at a 3 percent brine needs 2,000 times 0.03, which is 60 grams of salt. This calculator does that for you and also shows the salt in teaspoons using an approximate density you can adjust.

Common ranges are 2 to 3 percent for many vegetable ferments, 3.5 percent as a frequent all-purpose figure, and up to 5 percent or more for olives and longer cures. Lower salt ferments faster but is more prone to spoilage; higher salt is safer but slower and saltier. Follow a tested recipe for your specific vegetable.

Weighing salt in grams is far more accurate because salt crystals vary widely in size. A teaspoon of fine table salt weighs much more than a teaspoon of coarse flake salt. This tool converts to teaspoons using a salt density you enter, so set it to match your salt for a closer volume estimate.

This calculator bases the percentage on the weight of the water only, which is the most common convention in home fermentation guidance. Some references base it on total brine weight (water plus salt); at typical low percentages the difference is small, but always match the convention used by your recipe.