Grandma's Recipes #23 - Freezer Corn

I remember Grandma pulling this out of the freezer for lunch when I'd stay home sick from school.  It looks like an efficient way to preserve fresh corn all winter long, although I have no idea what "barn salt" is.

20 cups corn cut off the cob
1 cup sugar
1/4 cup salt (barn salt)

Mix the sugar and salt together and then mix with corn.  Let it stand for awhile until it's all moist.  Put in containers and freeze.