This might be a weird question and I have done some googling for it. And have gotten different answers. Would AZ be different because of heat? What is the best temperature for your home refrigerator. And the best temperature for its freezer?
I just keep mine about 1 or 2 notches over the medium setting. It all depends if it is summer or winter. I have a fridge in the garage as well, so that one we have to keep cooler.