Let's share our canning related experience. Can you do that?
Pickling or Canning salt is a particular variety of salt that is used in canning. Canning salt is a fine-grained salt and is iodine-free. It also does not have the anti-caking ingredients used in regular table salt. They add this agent to regular table salt so it will pour freely through a salt shaker. For those of you that don’t know what “anti-caking” means the best explanation is if you let pickling/canning salt sit in humid or wet place it will bind together like a rock. Many people use this salt pickle recipe as “all purpose” in the kitchen and in humid areas they add grains of rice to the salt shakers to keep it from clumping together. The rice absorbs any moisture.