~Salts
Most of us use it every day without even thinking twice about it. We're talking about salt. Chemically, salt is NaCL. But walk into a spice store and you'll see there's a lot of variety in NaCL: Online retailer and New York's famous spice store Kalustyan's, for instance, has more than 80 varieties of sea salt alone. What makes them all different?
A lot of things. First, just like terroir makes a difference in how wine tastes, place and source explain why salts have different flavors and colors — and uses. So, just like all wine is fruity (it comes from grapes, after all), all salt is salty, but there's more to the way we perceive what we eat than that.
__SALTS OF THE WORLD__
Salt comes from all over the world and is either mined or evaporated from seas, oceans, and salt lakes.
Table salt — perhaps the most common variety — is also the most processed. It's mined, and either brought up as rocks (rock salt) or dissolved underground and then evaporated later. Table salt is treated to have fine grains and avoid caking. It's also often fortified with iodine, a chemical our bodies don't make that's essential for proper thyroid function.
There's a wide variety of sea salt, and flavors of salt vary based on where the saltwater is. Most grocery store sea salt is evaporated through man-made means, instead of naturally. But more expensive sea salts come from shallow pits or pans of sea salt that are allowed to evaporate naturally, and the salt crystals are harvested. Salt from the top of the pans is usually white and neutral in flavor, such as "fleur de sel," or flower of the salt.
Pink salt
Salt from the bottom of the pans usually has some color and more nuanced flavor picked up from the pan, such as "sel gris," or gray sea salt. Sea salt produced via natural evaporation can have a variety of textures. Maldon Sea Salt, which comes from England's east coast, is known for its wide, flat, fragile, crunchy flake.
Mined salt also can have different colors and flavors based on where it comes from. For example, Himalayan pink salt comes from the Khewra salt mine in Pakistan, the second largest salt mine in the world, and one of the oldest (it's believed that Alexander the Great discovered Khewra salt mines in 320 B.C.E.). The pink color comes from traces of rust in the salt
Size and texture
But, as author Page points out, there's more to salt's flavor than taste alone. "Texture is a key aspect of mouthfeel, which is often a function of the size of the salt grain," she said. "Very fine grains will 'melt' into a dish more easily, while crunchy, coarse grains will add texture to the dish. Think about how the coarse salt adds to the crunchiness and deliciousness of a hard pretzel."
The size of the salt grain also makes a difference in how the salt is used. Fine salt is more often used during the cooking process, while larger grain salt is sometimes used just before serving — what chefs call "finishing salt."
"Certain ingredients should be salted early on, while others should be salted later in the cooking process," Page said. "And some dishes should simply be finished with a sprinkling of salt before serving, allowing you to maximize both flavor and texture. Finishing salts are those whose flavor and texture are not enhanced via the cooking process and should be added at the very last minute to a dish."
Many cooks and chefs keep a variety of salts on hand. Page and her co-author Andrew Dornenburg always have smoked salt in their pantry. "It's great to have both a sea salt and kosher salt on hand, plus a variety of finishing salts for different effects," she said. "Smoked salt is great as a finishing touch to Andrew's vegetarian split pea soup. Some vegetarian friends have turned it away, thinking there was ham in it! But it's just the salt adding its smoky savoriness to the soup."
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