Best Substitutes for Sea Salt
Sea salt comes in flakes, crystals, or fine grains depending on how it's harvested and processed. The texture matters as much as the taste. Flaky sea salt (like Maldon) measures about 1/2 teaspoon per gram, while fine sea salt packs 1/4 teaspoon per gram. That's double the volume for the same weight. Sea salt contains trace minerals that give a slightly briny, complex flavor compared to pure sodium chloride. The real difference shows up in finishing applications where you taste individual crystals. In cooking water or dough, any salt works identically once dissolved. Match the grain size first, then adjust for density differences.
Best Overall Substitute
Kosher salt at a 1:1 ratio by volume for cooking, or 1.5:1 for finishing. Diamond Crystal kosher salt has the same light, flaky texture as most sea salts and dissolves at the same rate. Morton's is denser, so use 3/4 the amount.
All Substitutes
Kosher salt
1:1 by volume for cooking, 1.5:1 for finishingKosher salt has larger, irregular crystals that dissolve slower than table salt. Diamond Crystal matches flaky sea salt's texture almost perfectly at 0.7g per 1/4 teaspoon. Morton's is denser at 1.2g per 1/4 teaspoon. Both lack the trace minerals that give sea salt its subtle oceanic flavor, but in cooked dishes the difference vanishes. For finishing, the larger crystals provide the same textural pop.
Table salt
Use 1/2 to 2/3 the volumeTable salt packs densely at 1.5g per 1/4 teaspoon versus sea salt's 0.6-1.2g range. The fine grains dissolve instantly. Anti-caking agents can leave a metallic aftertaste in large amounts. Start with half the called-for amount and adjust up. In baking, where recipes assume fine sea salt, table salt works at closer to 3/4 the volume.
Fleur de sel
1:1 by volumeThis hand-harvested French sea salt forms delicate pyramid crystals with 2-3% residual moisture. At $30-50 per pound, it costs 10x regular sea salt. The crystals crunch between your teeth and dissolve slowly on the tongue. The flavor carries hints of violet and minerals. Save it for finishing only. Using it in pasta water is like cooking with champagne.
Himalayan pink salt
1:1 by weight, 1.25:1 by volumePink salt is rock salt mined in Pakistan, not sea salt. The pink color comes from iron oxide. Fine-ground versions work identically to fine sea salt. Coarse crystals are much harder than sea salt flakes and don't dissolve as readily. The mineral content (2-3%) adds a slight metallic note some people enjoy. Costs 3-5x regular sea salt.
Celtic gray salt (sel gris)
1:1 by volume for coarse, 0.75:1 for fineGray sea salt retains 5-7% moisture and mineral-rich clay from French salt pans. The gray color comes from the clay lining. Coarse crystals are softer than regular sea salt and crush easily between fingers. The flavor is distinctly briny with mineral notes. Fine-ground versions pack denser than regular fine sea salt.
Pretzel salt
1:1 for topping, don't use for cookingPretzel salt has flat, rectangular crystals sized 2-3mm that stick to wet surfaces without dissolving. The crystals are compressed salt designed not to fall off during handling. Pure white color, pure salt flavor. At $8-12 per pound, it's a specialty product for specific uses only.
How to Adjust Your Recipe
Grain size affects measurement more than salt type. Fine sea salt and table salt pack into a teaspoon differently than flaky sea salt.
For every teaspoon of flaky sea salt, use: - 3/4 teaspoon fine sea salt - 1/2 teaspoon table salt - 1 teaspoon Diamond Crystal kosher salt - 3/4 teaspoon Morton kosher salt
When switching salts mid-recipe, dissolve a pinch of each in water and taste. Adjust from there. Dough and batter need 15-20 minutes for salt to fully distribute, so wait before adding more.
For brines and pasta water, all salts work identically once dissolved. Use weight measurements (grams) when precision matters.
When Not to Substitute
Finishing salts exist for their texture and visual appeal. Flaky Maldon on chocolate chip cookies, pyramidal fleur de sel on caramels, or coarse gray salt on grilled ribeye can't be replicated with table salt.
Fermentation recipes specifying sea salt often rely on trace minerals. Kosher salt lacks these minerals which can affect fermentation speed.
Salt-cured foods (gravlax, salt-baked fish) sometimes specify sea salt for moisture content. Completely dry salts pull more water from the protein.
Frequently Asked Questions
Is sea salt healthier than table salt?
Sea salt contains 2-3% trace minerals versus table salt's 99.9% sodium chloride. That translates to 20-30mg of minerals per teaspoon, nutritionally insignificant. Both contain about 2,300mg sodium per teaspoon. The real difference is processing: sea salt is evaporated seawater, table salt is mined and refined. Table salt often has added iodine (important for thyroid health) that sea salt lacks. Neither is healthier. Use less of either for health benefits.
Why do recipe measurements vary so much for different salts?
Crystal shape creates huge volume differences. Diamond Crystal kosher salt has hollow, pyramid-shaped flakes that stack loosely at 0.7g per 1/4 teaspoon. Table salt's cubic crystals pack tightly at 1.5g per 1/4 teaspoon. That's over double the salt for the same volume. Flaky sea salt falls between at 0.8-1.0g. Always adjust by taste when switching salt types. Weight measurements (5g vs 1 teaspoon) eliminate this confusion entirely.
Can I make my own sea salt?
Yes, from clean seawater. Boil 1 gallon of filtered seawater down to 1 cup (takes 2-3 hours), then spread on sheet pans and evaporate at 170F for 4-6 hours. You'll get about 1/2 cup of salt. The crystals form differently based on evaporation speed: fast creates fine crystals, slow creates flakes. Most homemade versions taste brinier than commercial sea salt. Only use water from pristine sources away from boat traffic and runoff.