Dana :)
While I don't have any cultural background, what I know about kosher salt is that the shape is important! It's a bit flakier and lighter (easier to sprinkle) than traditional table salt. The shape of salt actually changes your "taste" of it because of how it hits your tongue - there's a big difference between something like Maldon sea salt flakes (big, wide, crunky flakes) vs Table salt. One other tricky thing about kosher salt is that different brands have different "shape"/density - for example, Diamond kosher salt is lighter and flakier, whereas Morton's kosher salt is smaller & heavier. So you often use less Morton's kosher salt than Diamond because 1 tsp of Morton's has more salt in it (by weight) than Diamond. If you're looking for a conversion of kosher salt to table salt, 1/2 is usually a good rule of thumb! (If something says 2 tsp kosher salt, you'll be fine with 1 tsp table salt).