Kosher salt has a cleaner, pure salty taste, while iodized salt often has a metallic or slightly bitter aftertaste due to added iodine and anti-caking agents. Kosher salt is generally preferred for cooking, as its coarse, non-additive, large crystals provide better seasoning control and flavor without chemical undertones.

 I use a coffee/spice grinder to grind coarse Kosher salt.