It is just salt with no additives, and it is flaky and coarse. It is almost only for cooking, not a finishing salt. I like it because I can see it when I sprinkle it on things like meat. It has also become a common type of salt in recipes. A teaspoon of sea salt, a teaspoon of table salt, and a teaspoon of kosher salt are not equal. Kosher salt has become kind of a standard. If a recipe calls for a teaspoon of kosher salt, and you use sea salt, you will need to reduce the amount to less than a teaspoon, because of the density of the sea salt. There is more air in a teaspoon of kosher salt.
CD