Now that that nerdy background information is out of my system, I can actually answer the question: "ice cream salt" (usually called "rock salt") is exactly the same chemical as table salt, but its crystals are large and coarse instead of small and fine.
Thereof, can you use regular salt instead of rock salt for ice cream?
Both rock and canning salts can be substituted with table salt. When table salt is used in place of rock salt be careful of the amount as too much table salt can cause the ice cream to freeze to fast and become "crusty".
Also, can you eat rock salt for ice cream?
Rock Salt For Making Ice Cream.This will result in more rapid cooling at lower temperatures than what's possible with ice alone. *Morton Ice Cream Salt is NOT intended for consumption.
Is rock salt the same as kosher salt?
Kosher salt or koshering salt (outside the US called kitchen salt, cooking salt, flake salt, rock salt or kashering salt) is coarse edible salt without common additives such as iodine. Used in cooking and not at the table, it consists mainly of sodium chloride and may include anti-caking agents.
Is Rock Salt OK to eat?
Ice-melting chemicals commonly contain sodium chloride or rock salt, calcium chloride, potassium chloride, magnesium chloride, and/or urea, also known as carbonyl diamide. If swallowed, they can be irritating and cause stomach distress. On the skin or paws, they can cause irritation and dryness.