There was a time when salt was worth more than gold.
The earliest salt works we know of date back roughly eight thousand years, to a settlement in what is now Bulgaria, a place so wealthy from its salt that some believe it was one of the first true towns in Europe. Long before that, people were already drawn to wherever salt could be found. One researcher believed civilisation itself took root at the edges of deserts, near the salt beds, and that the first war in human memory may have been fought over a salt supply near the Jordan River. Whether or not that is exactly true, it tells you something about how far back this goes.
Salt kept people alive in a way nothing else could. Before iceboxes and fridges, it was the only thing that stopped meat and fish from turning through a long winter. Whole settlements grew rich simply because they sat on a vein of it. Ancient Egypt used salt in mummification. Ancient China taxed it as early as 2200 BC, one of the very first taxes any government ever raised. Roads were built for no other reason than to move it. The Via Salaria, the salt road, carried it more than two hundred kilometres from the Adriatic coast into Rome. Salt caravans crossed the Sahara for centuries, salt for gold, ounce for ounce, and in parts of Ethiopia salt is still used as currency today.
Roman soldiers were given an allowance to buy their own, called a salarium. That is where salary comes from. Even salad carries a trace of it, from the Roman habit of salting their greens. When someone says a person is not worth their salt, that phrase has been walking through language for two thousand years and has never once needed updating.
Your body has not forgotten any of this. Your heart beats because of it. Your nerves fire because salt moves in and out of your cells, carrying the signal that tells your muscles to move and your mind to think. It holds water where your body needs it and lets go where it does not.
Old healers packed wounds with salt long before anyone had a word for antiseptic. The Greeks and Romans did it too, often mixed with honey, believing it dried a wound and kept the rot out. There was truth in that. Salt draws fluid from tissue, and bacteria go with it. But salt was also used the other way. Sailors who were flogged had it worked into the open cuts afterward, sometimes called treatment, sometimes simply cruelty, meant to make the punishment worse. That is the darker root of the phrase you still hear today, rubbing salt in the wound. One old practice meant to heal. One meant to hurt. Both left the same sting behind, and the phrase never let go of either.
In the kitchen it still does what it has always done. It draws out what is hidden. A pinch in bread wakes the yeast. A pinch in caramel deepens the sweetness instead of fighting it. It is the difference between a dish that is finished and one that is only nearly there.
I have salted meat by firelight and watched it keep through a hard winter. Some things earn their keep across thousands of years. Salt is one of them.
Salt does not come in one form, and each one has its own work. Fine table salt dissolves fast, good for the everyday pot. Coarse sea salt sits on the tongue in a way that lifts a dish at the very last moment, scattered over a tomato or a piece of chocolate just before it reaches the table. Flaked salt shatters between the fingers and is made for finishing, not cooking. And a salt crust, packed thick and wet around a whole fish and baked hard in the oven, seals in every bit of moisture, so what comes out when you crack it open is tender in a way the oven alone could never manage. Olives are cured in it before they ever taste good, weeks in dry salt or brine to pull out the bitterness that raw olives carry. A good cook does not think of salt as one thing. They think of it as a dozen small decisions, made without noticing, that decide whether a dish tastes of something or tastes of nothing at all.
