What Is a Brine and How Is It Calculated?
A brine is a solution of salt dissolved in water, usually 3–6% salt by weight for cooking, in which meat, poultry, or seafood is soaked so it absorbs moisture and seasoning. Brining raises the water-holding capacity of muscle proteins, which keeps lean cuts like turkey breast and pork chops juicier after cooking.
The brine formula is: salt (g) = water (g) × brine strength (%) ÷ 100, where water weight is 1,000 g per litre or about 946 g per US quart, and brine strength is the salt as a percentage of the water's weight. A 5% brine in 4 quarts of water therefore needs about 189 g of salt.
Because salt crystals differ in size, the same weight takes up very different volume: a tablespoon holds roughly 18 g of fine table salt, 15 g of Morton kosher salt, and only about 9 g of Diamond Crystal kosher salt. Measuring by weight, or converting with this calculator, avoids a brine that is twice as salty as intended.
According to the USDA Food Safety and Inspection Service, meat and poultry must be brined in the refrigerator at 40°F (4°C) or below, and brine that has touched raw poultry must be discarded rather than reused.
How to Use This Brine Calculator
Pick your units, enter how much water you are using, and choose the food — the calculator fills in a typical brine strength and updates instantly. Here's what each field means:
- Water Amount: the volume of water in the brine, in US quarts or litres. Use enough to fully submerge the food.
- What Are You Brining: sets a typical strength and brining time. Choose Custom to type your own percentage.
- Salt (% of water weight): the salt-to-water ratio. 5% is a common general-purpose brine; 3% suits delicate seafood.
- Sugar (% of water weight): optional. 2–3% adds browning and mild sweetness, and does not add much to the brining effect itself.
- Type of Salt: converts grams into tablespoons for table salt, Morton kosher, or Diamond Crystal kosher.
Both US (quarts, tablespoons, ounces) and metric (litres, grams) are supported. Strength here is measured against water weight; some recipes quote percent of total solution weight, which the calculator also shows as "Final Salinity" — about 4.7% when you use a 5% water-weight brine.
Brine Strength and Time by Food
The table below lists commonly used brine strengths and times. Stronger brines work faster but risk over-salting if left too long.
| Food | Salt (% of water) | Time | Salt per quart of water |
|---|---|---|---|
| Whole turkey | 5% | 12–24 hours | 47 g (~5 tbsp Diamond Crystal) |
| Whole chicken | 5% | 8–12 hours | 47 g |
| Chicken breasts / pieces | 5% | 1–2 hours | 47 g |
| Pork chops | 5% | 2–4 hours | 47 g |
| Shrimp | 3% | 15–30 minutes | 28 g |
These figures are typical kitchen guidance rather than a regulatory standard, and some cooks prefer weaker 1–2% brines for longer soaks. Whatever strength you pick, the amount of salt that ends up in the meat depends on strength and time together.
Frequently Asked Questions
How much salt do I need for a brine?
For a standard 5% brine, use 50 grams of salt per litre of water, which is about 47 grams (roughly 5 tablespoons of Diamond Crystal kosher salt or 3 tablespoons of table salt) per US quart. Multiply the water's weight by the brine percentage to scale up for larger containers.
How accurate is this brine calculator?
The salt weight is exact for the percentage you choose, because it is simple arithmetic on the water weight. The tablespoon conversions are approximate since salt brands and crystal sizes vary, so weigh the salt on a kitchen scale whenever possible. Brining times are general guidance and vary with the thickness of the meat.
What is the difference between a wet brine and a dry brine?
A wet brine soaks food in salt water so it absorbs liquid, while a dry brine rubs salt directly onto the surface, typically 0.5–1% of the meat's weight, and lets the meat reabsorb its own juices. Wet brines add the most moisture; dry brines take less space and give crispier skin.
Can you brine a turkey for too long?
Yes. Brining a turkey beyond about 24 hours in a 5% brine can leave the meat salty and spongy in texture. Keep the turkey fully submerged and refrigerated at 40°F (4°C) or below throughout, and rinse and pat it dry before roasting for crisp skin.