Injection Brine Calculator: How Much to Inject and How Much Salt

By Cedrick Reese, BrineCalculators.com

12 lb whole turkey, 10% pump at 5% salt: 18.4 fl oz of brine, 27.2 g Morton kosher (about 2 tbsp), 5.4 g sugar, 0.5% of the meat.

Enter the cut and weight to get the injection volume, the salt, and how much of it actually ends up in the meat.

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Spoons for your salt brand

Your injection

Meat

Sets the cook temperature in the result. The brine math is the same for every cut.

Meat weight

0.5 to 30 lb (0.25 to 13.6 kg). Weigh the cut as it goes into the fridge.

Pump, brine as a percent of the meat's weight

10% is the usual default (meatman.com; about 2 cups into an 8 to 12 lb pork butt per Smoked BBQ Source). AmazingRibs leaves about 1 oz per lb in the meat, about 6%; competition pumps run to 15%. 5 to 20%.

Brine strength, salt as a percent of the liquid

% custom

AmazingRibs' tested injection brines run about 2 to 4%; meatman.com defaults to 8%. 1 to 10%. Salt times pump is what the meat gets.

Salt you have

Weigh it if you can; the spoons are a check. Fine salts (table, pickling, fine sea) dissolve fastest, which matters here because anything undissolved clogs the needle. Coarse kosher works once fully dissolved and strained.

Sugar, percent of the liquid

0 to 5%. meatman.com defaults to 1%; AmazingRibs' recipes use 1 tablespoon of sugar to 4 cups of water, about 1.3%. Sugar dissolves and injects like salt; it does not change the salt figure.

12 lb whole turkey, 10% pump at 5% salt

18.4 fl oz of brine

about 2 1/4 cups, 544 ml

Salt: 27.2 g Morton kosher (about 2 tbsp)
Sugar: 5.4 g
Water or stock: 512 g (512 ml), the liquid minus the salt and sugar
Salt added to the meat: 0.5% of the meat (10% pump x 5% brine)

Dissolve the salt and sugar fully, chill the brine, and strain it before it goes in the injector. Inject about every 1.5 inches, then rest the meat in the fridge an hour or more, overnight for a whole bird.

Safety: keep the meat at 40°F (4°C) or below before and after injecting, discard brine that touched raw meat, and cook turkey to 165°F (74°C) (foodsafety.gov).

12 lb whole turkey, 10% pump at 5% salt

18.4 fl oz of brine
27.2 g Morton kosher (about 2 tbsp), 5.4 g sugar
0.5% of the meat

8 lb pork butt, 10% pump at 8% salt

12.3 fl oz of brine
29 g Morton kosher (about 2 tbsp), 3.6 g sugar
0.8% of the meat

5 lb whole chicken, 10% pump at 3% salt

7.7 fl oz of brine
6.8 g Morton kosher (about 1 1/2 tsp), 2.3 g sugar
0.3% of the meat

4 lb pork loin, 8% pump at 5% salt

4.9 fl oz of brine
7.3 g Morton kosher (about 1 1/2 tsp), 1.5 g sugar
0.4% of the meat

10 lb brisket, 10% pump at 5% salt

15.3 fl oz of brine
22.7 g Morton kosher (about 1 1/2 tbsp), 4.5 g sugar
0.5% of the meat

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How this is calculated

This injection brine calculator puts the brine inside the meat, so two numbers set everything: how much liquid you pump in as a share of the meat's weight, and how salty that liquid is. Multiply them and you get the third number, the one most injection recipes never show, which is how much salt ends up in the meat. Enter the cut and the weight; the calculator returns the brine in fluid ounces and milliliters, the salt in grams and spoons for the salt you own, the sugar, and that final figure with a warning when it climbs past seasoning into curing.

Three multiplications. The brine is a share of the meat's weight; the salt is a share of the brine's weight; and the product of those two shares is the salt the meat ends up carrying. Everything is figured in grams and only then turned into fluid ounces and spoons.

brine (g)        = meat (g) x pump%              default 10%
brine (ml)       = brine (g)                     brine treated as water
brine (fl oz)    = brine (ml) / 29.57
salt NaCl (g)    = brine (g) x brine%            3, 5, or 8%, or custom
salt to weigh    = NaCl (g) / purity             Redmond 0.96, Celtic grey 0.81
sugar (g)        = brine (g) x sugar%            default 1%
water (g)        = brine (g) - salt (g) - sugar (g)
salt in meat (%) = pump% x brine%                warn above 1%, stop at 1.5%

Where the defaults come from

The 10% pump is the default on meatman.com's injection calculator and matches Smoked BBQ Source's "around 2 cups" into an 8 to 12 lb pork butt (9 to 13%). AmazingRibs' tested method is lighter, about 1 oz (30 ml) per pound, roughly 6%, and their brines are "about 2 to 4% salt by weight"; 2 tablespoons of Morton kosher in 4 cups of water works out to 3.0%. meatman.com defaults to 8% salt. The three strength buttons bracket that range, with 5% in the middle.

The final-salt line is the check the other calculators leave out. A 10% pump at 5% adds 0.5% salt to the meat, the seasoning of a lightly salted roast. At 1% you are at the salt level of a finished equilibrium cure, and at 1.5%, the ceiling the equilibrium brine calculator uses, the meat reads cured, so the calculator refuses to go past it. Lower the pump or the strength and it recomputes.

Brine is treated as water for the volume conversion, the same assumption meatman.com states. A 5% brine is about 3% denser than water, so the fluid-ounce figure runs a hair high, well inside the markings on an injector barrel. Commercial injected products often carry sodium phosphate to hold water; it is a regulated commercial additive (9 CFR 424.21) and this calculator does not dose it.

Spacing and rest

Insert the needle about every 1.5 inches (AmazingRibs' spacing) in a grid across the cut, push slowly, and withdraw while still pressing so the brine is laid along the track. Rest the meat in the refrigerator an hour or more; AmazingRibs found overnight disperses the injection more evenly, and 12 to 24 hours is the usual window for a whole turkey, pork butt, or brisket. A 14 to 16 gauge needle with side holes clogs least. Cook to foodsafety.gov's minimums: 165°F (74°C) for poultry, 145°F (63°C) with a 3 minute rest for whole cuts of pork and beef.

Spoons for the salt

Salt	Per tsp	Per tbsp	Source
Diamond Crystal kosher	2.8 g	8.4 g	Diamond Crystal label (1/4 tsp = 0.7 g)
Morton kosher	4.8 g	14.4 g	Morton label (1/4 tsp = 1.2 g)
Table, pickling, fine sea salt	6 g	18 g	USDA, 6 g per tsp
Redmond Real Salt	5.6 g	16.8 g	Redmond label (1/4 tsp = 1.4 g, about 96% salt)
Celtic light grey	6 g	18 g	Selina Naturally label (1/4 tsp = 1.5 g, about 81% salt; the calculator weighs it up)
Himalayan pink, fine / coarse	5.5 / 5 g	16.5 / 15 g	Measured (Is Salt); approximate
Flake salt (Maldon)	2.8 g	8.3 g	Measured (DadCooksDinner); approximate

What you'll need

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Meat injector with 14 to 16 gauge side-hole needles and a barrel of 2 oz or more. A 12 lb turkey takes 18.4 fl oz, which is nine or ten fills of a 2 oz barrel.
Kitchen scale that reads in grams. The salt for a whole turkey is under 30 g; a spoon can be off by a third.
Fine sieve for straining the brine before it goes in the barrel.
Instant-read thermometer for the 165°F and 145°F finishes.

How this page is checked

This calculator was built by Cedrick Reese for BrineCalculators.com. The pump default and the three brine strengths are checked against AmazingRibs' tested injection brines (1 oz per lb, 2 to 4% salt), meatman.com's working calculator (10% pump, 8% salt, 1% sugar) and Smoked BBQ Source's pork butt volumes; the needle spacing and rest times are AmazingRibs' figures; the cook temperatures are foodsafety.gov's chart; and the salt weights come from each maker's label through the salt table every calculator on this site shares. The 1% warning and 1.5% ceiling on salt in the meat are the site's own rule, set to match the equilibrium brine calculator so the two pages never disagree about what counts as cured.

Every constant the script uses is printed in the method above it, so a reader with a scale and an injector can check any result by hand. When one of the named sources revises a figure, the constant changes in one place and the page recalculates; if a number here disagrees with the source it names, that is a bug, and the contact page is the place to report it.

Frequently asked questions

How much brine should I inject into meat?

About 10% of the meat's weight, which is this calculator's default: 1.6 oz of brine per pound, or 19 oz for a 12 lb turkey. AmazingRibs' tested method leaves about 1 oz per pound in the meat (about 6%), the low end; BBQ suppliers' calculators default to a 10% pump, and competition-style pumps run to 15%. Above 20% the meat holds nothing more and the extra runs out during cooking, so the field stops there. If you are new to injecting, start at 10% and keep the brine at 5% salt.

Can I inject a turkey the night before cooking?

Yes, and it helps. AmazingRibs found the injection spreads more evenly if the meat rests an hour or more, even overnight, and 12 to 24 hours in the refrigerator is the usual window for a whole turkey. Keep the bird at 40°F (4°C) or below the whole time and cook it to 165°F (74°C) in the thickest part of the thigh and breast (foodsafety.gov).

What's the best salt concentration for injection brine?

3 to 8% of the liquid's weight, with 5% as the default here. AmazingRibs' tested injection brines are about 2 to 4% salt by weight (2 tablespoons of Morton kosher in 4 cups of water is 3%); meatman.com's calculator defaults to 8%. The number that matters is what the brine adds to the meat, which is the pump percentage times the brine percentage: a 10% pump at 5% adds 0.5% salt to the meat, about the seasoning level of a lightly salted roast. Above 1% you are at the salt level of a finished cure, and the calculator says so.

How do I prevent the injection brine from leaking out?

Push the plunger slowly and withdraw the needle while still pressing it, so the brine is laid along the track rather than pooled at one point. Go in at an angle rather than straight down, keep the injection points about 1.5 inches apart (AmazingRibs' spacing), and prefer several moderate shots to one big one. Some leakage is normal; letting the meat rest 30 minutes before you move it lets the muscle take up what it can hold.

Should I use water, stock, or other liquids for injection brine?

Water works. Low-sodium chicken, pork, or beef stock adds flavor and is what AmazingRibs' recipes call for as an option; apple juice is common for pork. Whatever you use, dissolve the salt fully, chill the brine, and strain it through a fine sieve, because anything that will not pass a 14 to 16 gauge needle clogs the injector. Regular stock carries its own salt, so use low-sodium or count its salt against the brine percentage.

Can I inject frozen meat?

No. The needle cannot pass through frozen muscle and the brine pools on the surface or leaks out. Thaw the meat fully in the refrigerator first, then inject it cold (35 to 40°F) and put it straight back in the fridge.

What happens if I inject too much brine?

Two things go wrong. Too much liquid (above about 20% of the meat's weight) cannot be held by the muscle, so it runs out during cooking and leaves a spongy, deli-meat texture. Too much salt in the meat, which is the pump percentage times the brine percentage, makes it taste cured: this calculator warns above 1% of the meat's weight and will not compute above 1.5%, the same ceiling the equilibrium brine calculator uses. Keep the pump at 10% and the brine at 3 to 8% and both stay in range.

Do I need to rinse meat after injecting it?

No. Unlike a soak, an injection puts a measured amount of salt inside the meat and leaves little on the surface, so there is nothing to rinse off. Pat the surface dry with paper towels before the rub goes on so the outside browns and forms bark.

What size needle should I use for meat injection?

A 14 to 16 gauge needle with side holes suits most cuts. Thinner needles clog with any spice or stock solids; thicker ones leave holes that let the brine run back out. Side holes lay the brine along the track instead of forcing it into one spot. Strain the brine before it goes in the injector whatever the gauge.

Can I substitute one type of salt for another?

Yes, by weight, never by the spoon. A teaspoon of Diamond Crystal kosher weighs about 2.8 g, a teaspoon of Morton kosher about 4.8 g, and a teaspoon of table salt about 6 g (each maker's label), so a spoon of table salt carries more than twice the salt of a spoon of Diamond Crystal. This calculator works out the grams first and prints the spoons for the salt you pick, so switch the salt and the grams stay put while the spoons change. Fine salts dissolve faster and leave fewer undissolved grains to clog the needle.

How long before cooking should I inject my meat?

An hour is enough to make a difference and overnight is better; AmazingRibs' testing found the injection disperses more evenly with an hour or more of rest, even overnight. Large cuts such as a whole turkey, a pork butt, or a brisket do best with 12 to 24 hours in the refrigerator. Keep the meat at 40°F (4°C) or below the whole time and discard any brine that touched raw meat.

References

Disclaimer

Educational use only: this injection brine calculator is provided for educational and informational purposes only. It is designed to help home cooks and BBQ enthusiasts calculate injection brine ratios based on established culinary practices and food safety guidelines.

Not professional advice: the information provided by this calculator does not constitute professional culinary, medical, or food safety advice. While we strive for accuracy and base our calculations on authoritative sources including USDA guidelines and established culinary science, individual results may vary based on specific circumstances, equipment, and ingredients.

Food safety responsibility: you are solely responsible for food safety when preparing and consuming brined or injected meats. Always follow USDA food safety guidelines, use a calibrated meat thermometer to verify safe internal temperatures, maintain proper refrigeration at or below 40°F (4°C), and cook meat within recommended timeframes. When in doubt, consult USDA resources at fsis.usda.gov.

Accuracy and liability: while we have taken care to ensure the accuracy of formulas and recommendations, BrineCalculators.com and its operators make no warranties or guarantees regarding the accuracy, completeness, or reliability of the calculator results. We are not liable for any adverse outcomes, including but not limited to foodborne illness, property damage, or other consequences resulting from the use of this calculator or the information provided herein. See the full disclaimer.

Salt measurement: salt measurements can vary significantly by brand and type. Always measure salt by weight (grams or ounces) when precision is critical. Volume measurements (teaspoons, tablespoons, cups) are provided for convenience but may be less accurate due to differences in salt crystal size and density.

Medical conditions: if you have medical conditions affected by sodium intake (hypertension, kidney disease, heart conditions), or other dietary restrictions, consult with a healthcare professional before consuming brined or injected meats. Injection brining significantly increases sodium content.

Use at your own risk: by using this calculator, you acknowledge that you have read this disclaimer and agree to assume all risks associated with injection brining and meat preparation. You agree to hold harmless BrineCalculators.com, its operators, contributors, and affiliated parties from any claims, damages, or liabilities arising from your use of this tool.