Brine Strength Visualizer: Where Your Salt Percentage Sits

It depends on what the percentage is measured against. Sauerkraut and kimchi use 2 to 2.5% salt by weight of the vegetables (NCHFP's sauerkraut recipe, 3 tablespoons of canning salt per 5 pounds of cabbage, is about 2.4%). Fermented cucumbers sit in a 3.5 to 5% brine on this site; NCHFP's fermented dill recipe, half a cup of pickling salt in 8 cups of water, is stronger at about 7.6%. Poultry and pork wet brines run 3.5 to 6% salt to water: a cup of Diamond Crystal in a gallon is 3.5% and a cup of Morton kosher in a gallon is about 6.1%. Short brines of 6 to 8% are for chicken pieces and shrimp for an hour or two. Curing is a different calculation, by weight of the meat with Cure #1, and lives on the bacon curing calculator.

Put the numbers in and read the scale. Under 2% a vegetable ferment is outside the tested recipes and softens or spoils more easily; over 5% it slows down and tastes salty. For meat, under 3.5% barely seasons in the usual hours, and over 6% needs a short soak and a rinse, or the meat comes out salty and spongy. Taste is a rough check: a 3.5% brine is about as salty as seawater. A brine that is too strong is fixed by adding weighed water; one that is too weak by dissolving more weighed salt. Either way, run the new totals through the calculator before the food goes in.

Not brine that has held raw meat, poultry, or fish; it carries whatever the meat carried, and boiling it does not make it a good idea. Brine from a finished vegetable ferment can start the next batch as long as it smells clean and sour with no mold or off odors, and it will speed the new batch up. Brine that was mixed but never touched food keeps for a few days in the refrigerator.

In a vegetable ferment, cloudiness is the lactic acid bacteria at work and is what you want to see; a cloudy brine that smells pleasantly sour is fine. A cloudy brine with a foul smell, pink or fuzzy growth, or slime is spoilage. A freshly mixed meat brine can look cloudy from anti-caking agents in table salt or from minerals in an unrefined salt; that is harmless but a cleaner salt avoids it. A meat brine that turns cloudy while the meat sits in it past its time should be thrown out with the batch.

Any salt without iodine or anti-caking agents: pickling salt, kosher salt, or plain sea salt. Iodine can give a ferment an off flavor and anti-caking agents cloud the brine. What matters more is the weight. A tablespoon of table salt weighs 18 g, a tablespoon of Morton kosher 14.4 g, and a tablespoon of Diamond Crystal 8.4 g, so the same spoon gives you three different brines. Pick your salt in the calculator and it converts spoons to grams, and for unrefined salts like Celtic grey (about 81% sodium chloride) it counts only the salt.

Unused brine that has never touched food keeps in a sealed container in the refrigerator for a few days; make it the day before if that helps, and chill it to 40°F (4°C) before the food goes in. A finished vegetable ferment keeps for months in its brine in the refrigerator and keeps developing flavor. Meat brine is single use and goes out with the batch.

Meat and poultry, yes: a quick rinse under cold water takes off the surface salt, and patting the meat dry matters even more, because a wet surface steams instead of browning. It matters most after a brine at 6% or above. Fermented vegetables are not rinsed; the brine is part of the food. Quick pickles are a matter of taste.

Too weak, and a vegetable ferment can go soft or spoil before the acid builds, and meat comes out under-seasoned. Too strong, and a ferment stalls because the salt slows the bacteria that make the acid, vegetables turn tough as the salt pulls water out, and meat tastes salty with a spongy texture. The fix is in the numbers: weigh the salt and the water, check the percentage here, and if it lands outside the band for what you are making, adjust one of them and check again.

This page, and brining recipes generally, divide the salt by the water: 50 g of salt in 1,000 g of water is a 5% brine. A chemist divides by the whole solution, salt plus water, and calls the same mix 4.8%. The result shows both figures so you can compare either kind of source. The two are close at cooking strengths and drift apart at the top: saturation is 36 g of salt per 100 g of water, which is about 26.5% of the solution, and that is where the scale ends because no more salt will dissolve at room temperature.