Which Salt for Brining: Table, Kosher, Sea, and More Compared

Yes. A brine is sodium chloride dissolved in water, and table salt is sodium chloride, so it seasons and moisturizes meat exactly the way kosher or sea salt does. The National Center for Home Food Preservation says plainly that pickles may be made safely with either iodized or non-iodized table salt. The two real caveats: the anti-caking agent in most table salt can leave a fine cloudy sediment in the brine (cosmetic, not a safety issue), and if a recipe is written in cups or teaspoons for kosher salt, substituting table salt cup for cup will over-salt the meat badly, because table salt is much denser by volume. Weigh it in grams and either problem goes away.

Yes, with one caveat depending on the grind. Fine sea salt measures almost exactly like table salt, about 288 g per cup, so it takes roughly 1 1/4 teaspoons of Morton kosher or 2 1/8 teaspoons of Diamond Crystal to match one teaspoon of it; Morton's own conversion chart substitutes fine sea salt and table salt one for one. Coarse sea salt varies too much by brand and harvest to trust a chart figure, so weigh it. Either way, once it is dissolved in the brine, a gram of sea salt behaves exactly like a gram of any other pure salt.

Crystal shape, not chemistry. Table salt crystals are small, dense cubes that pack tightly into a measuring spoon; a teaspoon holds about 6 g. Diamond Crystal's crystals are hollow pyramids that mostly trap air, so a teaspoon holds only about 2.8 g, and Morton's flatter flakes land in between at about 4.8 g. Weigh any of them and the difference disappears, which is why every calculator on this site works in grams first and converts to spoons only for the salt you actually have.

Functionally, no, and the taste question is where sources actually disagree. Handle the Heat's salt guide describes iodized salt as leaving an unpleasant, slightly metallic taste and a seaweed-like smell when it hits chlorinated tap water. America's Test Kitchen ran a blind comparison of iodized and non-iodized salt dissolved in water and again in chicken stock and reported that most tasters could not tell them apart in either test, since the iodine level in table salt is far below what the tongue can detect. Both agree it is safe. If you are sensitive to it or just want to rule it out, pickling salt and most kosher salts have no iodine at all.

Yes, but only by weight, not by the same number of cups or spoons. Table salt is about 288 g per cup; Morton Coarse Kosher is about 230 g; Diamond Crystal is about 134 g, roughly half as dense as table salt. Pour table salt cup for cup in place of Diamond Crystal and the brine ends up more than twice as strong as intended. America's Test Kitchen's own substitution rule is 1 tablespoon of table salt for about 1 1/2 tablespoons of Morton or 2 tablespoons of Diamond Crystal, a similar ratio measured a different way. Enter the gram figure into the salt conversion calculator and it will hand you the right spoon amount for whichever salt is in your cupboard.

For safety, no; both are pure enough sodium chloride to brine or pickle with. The difference is clarity. Pickling salt has no anti-caking agent, so it dissolves without leaving the fine white cloud that table salt's additive can leave behind in a clear brine or a jar of pickles. For a bucket of turkey brine going down the drain afterward, that cloudiness is not worth worrying about. For pickles you plan to look at in a jar for months, pickling salt is the tidier choice, and it costs about the same as table salt.

Mostly kosher salt, and mostly for the same reason home cooks are told to use it: the large, additive-free crystals are easy to pinch and see on food, and the lack of iodine keeps the flavor neutral. America's Test Kitchen writes its recipes in table salt by default and calls out kosher salt only when the texture or pinch-ability matters, converting between the two with the ratios above. For a dissolved brine, where nothing is pinched, kosher salt is a habit more than a requirement; table salt weighed correctly does the same job.

Yes, and both need slightly more of the product to hit the same brine strength, because neither is 100% sodium chloride. Himalayan pink runs about 96 to 98% NaCl by weight, and Celtic light grey sea salt is moister and runs closer to 81%, so a brine calculator that targets, say, 5% salt by weight of water asks for more grams of Celtic grey than of table salt to deliver the same actual salt. The main brine calculator's salt selector applies that purity math automatically once you pick the salt; the figure it shows you is what to put on the scale.

Cosmetic. The anti-caking agents most US table salt carries, typically a calcium silicate or similar compound, are added to keep the crystals free-flowing in a humid kitchen, and they are not very soluble in water. Wikipedia's summary of pickling salt and America's Test Kitchen's own pickling-salt guide both describe the same effect: the additive can settle as a fine cloud or sediment in a clear brine. It does not change the salt content, the safety, or, by most accounts, the taste. If a clear brine matters to you, pickling salt or kosher salt sidesteps it entirely.