I think you can get cream without pasturizing, I just choose to pasturize. I made the butter in my mixer when I took out of freezer and let sit till It thawed. I mixed and mixed, my first time, and then turned real thick. I put the stuff in the fridge, it got too warm. then after a few hours I took it out and put back in the mixer and Whooosh! I had butter! It was really fun.