[pohl]

That’s not enough to justify the grinder. Buy a box of Diamond Crystal Kosher salt. It has the perfect texture for keeping in a salter on the counter so it’s easy to grab a pinch.

[hnal943]

kosher salt is way too coarse for popcorn, so I don't think it eliminates the need for the grinder

[pohl]

You can control the coarseness by rubbing it between your fingers as you apply it. You may have seen video of chefs doing this.