You can substitute rock salt when making ice cream.
Regular table salt or Kosher salt also works well to make ice cream.
Salt causes the ice to melt. When salt and ice mix, the freezing point of the ice is lowered and the freezing point reached depends on the amount of salt used.
The shaking (or stirring in an ice cream maker) moves the warmer cream mixture from the inside to the outside of the bag so it can freeze evenly.
While many ice cream recipes call for rock salt, it is possible to make ice cream using plain table salt.
Making ice cream with table salt does not require special machinery or hours in the kitchen.
When making ice cream, you're using physical changes.
You mix and dissolve the sugar into the milk, but this doesn't change the chemical structure of the milk and you could remove the sugar is you tried.
Rock Salt alternatives for making ice cream include.
Stone Grits. Grit-stone is one of the effective rock salt alternatives.
Calcium Chloride. Calcium chloride is another option for rock salt alternatives.
Calcium Magnesium Acetate.
Magnesium Chloride.
Koyuncu Deicer Salt.