course salt

Coarse salt, also known as sea salt or kosher salt when referring to its granule structure, consists of large, unrefined salt crystals harvested from seawater evaporation or mined from ancient salt deposits. The crystals range from 2-5 millimeters in diameter, creating a distinctive texture that differs markedly from table salt's fine grains. While "coarse salt" is a general descriptor, it encompasses several varieties including fleur de sel (hand-harvested French sea salt), Maldon salt (distinctive pyramid-shaped English crystals), and evaporated sea salts from various coastal regions.

The larger crystal structure affects how coarse salt dissolves and clings to food surfaces. Its mineral composition varies by source—sea salt varieties contain trace minerals like magnesium, potassium, and iodine, while mined salts are chemically pure sodium chloride. The flavor profile is typically cleaner and less intensely salty than table salt due to the lower surface area per unit volume, allowing for more nuanced seasoning control.

Coarse salt serves multiple functions in culinary applications. It is used as a finishing salt, where its visible crystals add textural interest and visual appeal to dishes such as grilled meats, roasted vegetables, and caramelized desserts. The larger crystals make coarse salt ideal for salt crusts used in cooking fish and other proteins, where a thick paste of salt is molded around food to trap steam and moisture. In brining and pickling, coarse salt dissolves more gradually, allowing for better control of salinity levels. It is also employed for seasoning rimmed glassware for cocktails and for use in salt mills, where the larger crystals grind consistently.