Q: If a recipe calls for coarse salt, can I just use table salt?

A: No. Table salt grains are a lot smaller than coarse salt grains -- so a teaspoon of table salt is a lot more potent than a teaspoon of coarse salt. You don't have to invest in fancy sea salt; kosher salt is an affordable coarse type that works well in most recipes. If you only have table salt handy and the recipe calls for coarse, start by putting in half as much table salt, and taste the dish from there. -- Tracey

Source: rachaelraymag.com/food/your-cooking-questions-answered