Name: Sub Zero Ice Cream And Yogurt - Provo Mall. Descripton: Science meets dessert. Using Liquid Nitrogen, we freeze your ice cream right before your eyes. Our unique freezing technique allows you to customize your ice cream from the amount of cream, to the flavors, and the toppings we mix in. You choose the Chill Factor, and we freeze it soft, medium or hard to your specifications. You've never seen or tasted anything like it!