Hot Sauce Salt Calculator

Salt by weight for fermented hot sauce — a pepper mash salted directly, or peppers in brine.

Chopped or blended peppers salted directly — salt as % of their weight. Enter your recipe's %.

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Danger: Keep it in the fridge — or make it acidic. Hot sauce is low in oxygen, where botulism can grow. To keep it at room temperature, its pH must be below 4.6: add vinegar and test it with a pH meter or strips. — SDSU Extension
Warning: There's no tested recipe for fermented hot sauce, so there's no official salt %. Use your recipe's, keep the peppers under the brine, and test the pH of each batch. — Oregon State University Extension

Mash or brine?

A mash is peppers chopped or blended and salted directly — they ferment in their own juice. The salt is a percentage of the peppers' weight: 1,000 g of peppers at 3% needs 30 g of salt.

In a brine, whole or chopped peppers are covered with salted water, and the salt is a percentage of the water: 1 L of water at 3% needs 30 g of salt. The examples are arithmetic, not recommendations — use your recipe's percentage.

Keeping hot sauce safe

A finished sauce is sealed away from air, which is the condition botulism needs. The protection is acidity: South Dakota State University Extension says a hot sauce's pH must be below 4.6, adding an acid such as vinegar if needed, and that the pH should be tested. Oregon State University Extension notes there is no lab-tested recipe for fermented hot sauce, and advises recording each batch and its pH. If you don't acidify and test, keep the sauce in the fridge.

Why salt by weight?

A spoonful of one salt can weigh twice as much as another, so a recipe in spoons can come out twice as salty — or half as salty — depending on the box in your cupboard. Weighing takes the guesswork out.

Sources: South Dakota State University Extension, How to Make a Safe Hot Sauce (2023); Oregon State University Extension Service, Ask Extension: USDA-approved fermented hot sauce recipe?; CRC Press, CRC Handbook of Chemistry and Physics; Morton Salt, Morton Coarse Kosher Salt — nutrition facts; Morton Salt, Morton Iodized Table Salt — nutrition facts; Diamond Crystal (Cargill), Diamond Crystal Kosher Salt — package label. All sources and how we use them.

Informational only — not professional advice.