Earlier quoted context omitted.
> Grinder means finer salt. I've never seen on-the-spot ground salt smaller than the stuff you can buy already grounded. Except if you buy flakes, but then why do so if you want finer salt?
It's just culinary cargo cult. You grind pepper and other such things because the flavor survives well in the peppercorn but degrades relatively rapidly in air, so waiting until the last minute to grind it results in better flavor. Oxidized pepper is easy to notice the difference in flavor profile and much lower complexity. Especially the pepper shakers that have been sitting at the restaurant table probably yea veri…
I think you’re misunderstanding the use. It’s a different goal from grinding spices. It’s functional. And I’ve never seen powdered salt selling anywhere in Canada. (Except for expensive artisan stuff). So, the best way to achieve it is with a grinder+rock salt. I’ve been using a simple Amazon grinder and it’s easy to use.
Powdered salt tastes different not because of a differing chemical composition, but because of its different physical nature + your tongue.