If you could only improve one aspect of your cooking, it should be your salt usage. Salt is involved in virtually every cooking process, and understanding it transforms mediocre food into great food.
Types of Salt and When to Use Each
Diamond Crystal kosher salt: The professional standard. Large, hollow flakes that dissolve quickly and are easy to pinch. Its low density means it's more forgiving — you're less likely to over-salt.
Morton's kosher salt: Denser than Diamond Crystal. If a recipe specifies Diamond Crystal and you're using Morton's, use about ⅔ the amount.
Fine table salt: Very dense and easy to over-use. Best reserved for baking where precise measurement matters. It also contains anti-caking agents that can affect fermentation and pickling.
Flaky finishing salt (Maldon, fleur de sel): Used only as a final touch — on salads, chocolate, caramel, steaks. The crystals provide bursts of salinity and satisfying crunch. Don't cook with these; it's a waste of expensive salt.
When to Salt
Season early and throughout cooking. Salting only at the end results in food that tastes "salty on the surface" rather than seasoned throughout. Proteins should be salted at least 40 minutes before cooking (or overnight) — this is dry brining. The salt initially draws out moisture, then the brine is reabsorbed, seasoning the meat deeply and improving texture.
Pasta water: Should taste like the sea. 1–2 tablespoons of kosher salt per quart. This is the only chance to season the pasta itself — sauce on the outside isn't the same as salt inside the noodle.
Salt's Hidden Roles
Drawing out moisture: Salt eggplant, zucchini, or cabbage to remove excess water before cooking. This concentrates flavor and prevents steaming.
Enhancing sweetness: A pinch of salt in desserts makes chocolate taste more chocolatey, caramel more complex, and fruit brighter. It suppresses bitterness, allowing sweet flavors to come forward.
Controlling fermentation: In bread, salt slows yeast activity, giving you control over rising time. In fermented vegetables, salt creates the environment for beneficial bacteria while inhibiting harmful ones.
Fixing Over-Salting
Add acid (lemon juice, vinegar) — it doesn't reduce salt but shifts the perception. Add fat (butter, cream, oil) — it coats the tongue and mutes saltiness. Add bulk (more unsalted ingredients). A raw potato does not absorb salt from soup — that's a myth.