Why should you use rock salt rather than regular table salt to make home made ice cream?
While rock salt is ideal, you can use table salt if needed. You can also make your own rock salt by heating some water, then dissolving as much salt in it as allowed. Heat the water until boiled. When the boiling water has become a saturated solution and cannot dissolve any more salt, remove the water from the stove and let it cool. As the water evaporates from the solution, the salt will form crystals. You can then crush the crystals, and you’ve got rock salt.