How do you make ice cream (at home) to make it grainy?

I was just wandering about that....I dont know a lot about making ice cream, we usually get Blue Bell ice cream yummyHow do you make ice cream (at home) to make it grainy?
i usually get grainy homemade ice cream if I use lower fat milk and/or cream. If make ice cream with normal full fat milk and heavy cream. It is nice and smooth like an ice cream store would make. But if I use say half n half and nonfat milk, it gets all grainy.





just personal preference.How do you make ice cream (at home) to make it grainy?
Iced cream gets grainey when it freezes too slowly .