What is the difference between table salt, sea salt, kosher salt, and rock salt?
Table salt is made by driving water into a salt deposit (mine) and evaporating the brine that is formed, leaving dried crystals that look like granulated sugar. Sea salt is what remains after seawater is trapped and evaporated. If you substitute sea salt in cooking or to flavor food, you may need to use more than table salt because it is less dense. Kosher salt is made much the same way as table salt but is raked continuously during the evaporation process. This gives it a lighter, flakier texture. Kosher salt also is denser and more flavorful than table salt. It is often used in pickles and conforms to Jewish dietary laws. Rock salt is table salt that is not refined and is not used in or on food.