Salt Varieties and Use: Putting the Right Salt in the Right Place
Table salt, rock salt, sea salt, Maldon, Himalayan… Salt actually has one chemistry, but each kind belongs in a different place. A practical guide on the iodine question, measurement inconsistency, and timing.
The Tatonia Editors··8 min read
Salt is the one kitchen ingredient without which no dish works. It is not a spice, it is not a fat, but it does the job of both at once. Samin Nosrat, in Salt, Fat, Acid, Heat, defines salt as one of the four basic elements of good cooking and puts it at the top of that order. But when we say "salt" we are not referring to the same substance. In Turkish markets you can easily find five different salts, and each one has its own place of use.
Three kitchen functions of salt
Salt does not only "flavor." It starts three different chemical events in food.
1. Flavor enhancement. Sodium ions stick to the taste receptors on the tongue and make it easier to perceive other flavor molecules. The right amount of salt suppresses bitterness, brings sweetness forward, and enriches aroma. An under-salted dish often feels "empty"; that emptiness is undersalting. An over-salted dish suppresses the others and collapses to a single dimension.
2. Osmosis (water-pulling). Water leaves the cells in contact with a salty surface. Salting eggplant and waiting pulls out bitterness and excess water; when fried, it does not absorb oil. Salting cucumber and waiting before adding to cacık prevents the dish from being watery. The same mechanism works when draining yogurt for meze and when water leaves the edges in cheese-making.
3. Changing protein structure (denaturation). Salt changes the surface charge of protein molecules. Salt sprinkled on meat 24 hours in advance (dry brine) prevents protein fibers from contracting too tightly; the meat loses less moisture while cooking, and the bite is softer. This is a chemistry detailed in our meat searing article. The same mechanism increases foam stability when whisking egg whites.
Because these three functions work together, adding salt is not "adding one more flavor" but an act of changing the structure of the dish.
Salt varieties: same chemistry, different textures
The base of all salts is the same: sodium chloride (NaCl). Rock salt and sea salt are chemically the same compound. The difference is in grain size, trace minerals, and processing.
Table salt (refined, iodized). Fine, cubic crystals. The most common home salt. In Türkiye iodine addition has been mandatory since 1994; endemic goiter risk dropped greatly thanks to that decision. To prevent clumping, small amounts of ferrocyanide or calcium silicate are also added to table salt. Reliable, cheap, sufficient for everyday use. Ideal for cooking and dough work.
Rock salt. In Türkiye, mined from Yozgat, Iğdır, and Bilecik mines. Large, irregular crystals. Most is sold unrefined, without iodine added. Preferred for turşu, brine, and canning because iodine and anti-caking additives can affect fermentation. It gives a slightly more "earthy" taste than table salt, but distinguishing this difference in a dish is hard.
Sea salt. From salt flats like Çamaltı (İzmir), Ayvalık, Foça. Crystallized by solar evaporation. Coarse grain, iodine-free. Nice in salads, before serving, on top of fresh tomatoes, where a glossy salt is wanted. In cooking it can introduce measurement uncertainty (crystal size varies).
Flake salt (Maldon). Fine, flat, pyramid-shaped crystals. The British Maldon brand is classic. Crumbles easily between fingers. Sprinkled on food after cooking, it leaves a "crunchy" feeling on the tooth. A stylish touch on top of bread out of the oven, grilled steak, a chocolate cookie. Using it in cooking water is wasteful.
Himalayan pink salt. From the Khewra salt mine in Pakistan. The pink color comes from iron oxide. Chemically no different from table salt; it contains trace minerals (calcium, magnesium, potassium), but in practice the nutritional contribution is negligible. Popular as a trend, but the "healthier" claim is marketing language. Iodine-free. Looks nice as a service salt.
Kosher salt. Not common in Türkiye. Widespread in the US; coarse grain, iodine-free, pure NaCl without additives. Easy to grab with the fingers and sprinkle homogeneously, the preference of American chefs. In Turkish cuisine rock salt can be used in its place.
Black / Kala namak, Hawaiian black salt. Niche products. Kala namak contains sulfur, giving an egg-like smell; popular in vegan scrambles. Hawaiian black salt is mixed with activated charcoal; for aesthetic purposes.
The iodine question: the health dimension
In Türkiye, endemic goiter was a widespread problem until the 1990s. After the mandatory iodine addition in 1994, the situation improved dramatically. But in recent years the Himalayan, sea salt, and natural rock salt trend has brought iodine deficiency back to the agenda, especially in families with children.
The World Health Organization recommends 150 micrograms of iodine daily for adults. For pregnant and lactating women it rises to 250 micrograms. Iodized table salt covers a large part of this need. Those who switch to completely iodine-free salt (especially during a child's developmental period) should include alternative iodine sources like eggs, fish, seaweed, and dairy in their diet.
Practical suggestion: keep iodized table salt at home for daily use. For service or for making turşu/canning, an iodine-free salt (rock, sea, Maldon) can be preferred.
The rumor that "iodine evaporates in boiling water" is partially true. With prolonged boiling there is iodine evaporation, but in daily cooking the loss is around 10-20% and can be neglected.
Measurement inconsistency: grain size becomes a trap
The most-confused topic is that the same volume of different salts contains different amounts of sodium. According to Jacobsen Salt Co.'s measurements:
1 teaspoon table salt ≈ 6 grams
1 teaspoon Morton kosher salt ≈ 5 grams
1 teaspoon Diamond Crystal kosher salt ≈ 3 grams
1 teaspoon coarse sea salt ≈ 4-6 grams (by brand)
The difference can be two-fold. If the recipe says "1 teaspoon salt" and you are using flake Maldon, you may have put in half the salt of someone who measured by table salt. The result is bland food.
Solution: if the recipe gives a salt amount, know which salt type the recipe was written for. If not specified, get to know your own salt and adjust by tasting. The most reliable method is measuring by grams: 10-15 grams of salt per 1 kg of meat is stable regardless of fine-crystal density.
Salting timing: when and how much?
When the food is salted matters as much as how much it is salted.
For meat: salting 24 hours in advance (dry brine). Salt diffuses from the surface inward, relaxes the protein structure, and reduces water loss during cooking. A day for large cuts, at least 30 minutes for small cuts is ideal. Salting right before cooking creates a dry layer on the surface and delays the Maillard reaction.
In vegetables: add early to the cooking water. Salty water stabilizes the pectin in plant cells; vegetables soften less. In salads, at the last moment, so the salt does not pull water and wilt the vegetable.
In legumes: salting the boiling water later was an old kitchen rule (the claim that early salt prevents chickpeas from softening). Modern tests show that salt makes no difference; adding it early or late does not matter. Yet not putting salt in the soaking water is a real point; over long hours it can cause hardening.
In doughs: salt slows yeast fermentation. Going over the amount specified in the recipe delays leavening; reducing it loosens the dough. Salt must not be in direct contact with the yeast; it should be distributed homogeneously through the flour.
For fish: 15-20 minutes before cooking. Earlier salting dehydrates the delicate muscle structure too much; the fish comes out dry. Later salting cannot catch the surface taste.
Common mistakes
Adding salt on top "because I couldn't taste it". Usually the problem is not undersalting but that the salt has not entered the cooking. Salt added during cooking diffuses into the food; salt sprinkled on top before service only touches the tongue surface. The result is the same salt amount giving a flatter taste.
Using the same salt for everything. Fine crystals for dough, coarse grain for meat brine, flake salt for service. Every process has its own salt ideal.
Switching to iodine-free salt and not building alternative sources. Someone who follows fashion and switches to Himalayan but does not have fish, milk, eggs in their diet may have iodine deficiency. In families with children this is serious.
Adding salt to fresh-frozen vegetables. Frozen vegetables are already blanched; salt pulls remaining water from the cells; the texture decays badly. First cook, then salt.
Keeping the salt container above the stove. It absorbs hot steam, clumps, and gives an inconsistent amount on use. Stored dry, away from the stove, in a closed container.
A closing note
Salt is the kitchen's most basic ingredient, but there is no single "right salt" product. Table salt in dough, flake Maldon on the surface of a steak, iodine-free rock salt when making turşu. Each presents the same NaCl in a different form and suits a different job. When fully switching to iodine-free salt, the diet as a whole must be thought through; this is not just a flavor but a health matter. When a recipe says "a pinch of salt", whose finger holds that pinch matters.