Reddit reviews Thick Barbecue Salt - Sal Grosso para Churrasco - Lebre - 32.27oz. (1Kg)

Difference is the size. Table salt is too small. Kosher salt has a bigger salt crystal. You could entirely coat a hamburger with kosher salt and toss it on the grill. It would come out fine with kosher salt whereas that much regular table salt would ruin a burger.

Brazilian rock salt is a much larger grain of sea salt. That's really what you want for to properly tenderize your steaks. Here's what it looks like: https://www.amazon.com/Thick-Barbecue-Salt-Churrasco-32-27oz/dp/B0073X07G4/ref=asc_df_B0073X07G4/?tag=hyprod-20&linkCode=df0&hvadid=312167861240&hvpos=1o1&hvnetw=g&hvrand=5699446902396647142&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9011812&hvtargid=pla-568042062160&psc=1