I worked in a Baskin-Robbins when I was 17, and I don't know if it was just that place, but whatever you do, never order a milkshake. There was a guy who used to make the milk to use for it by mixing powdered milk with water, and storing that in milk gallon jugs. Thing is, instead of doing it every couple of days as needed, he would make huge batches of it, and stored them in the fridge. Well after a couple of weeks, they'd start getting stinky when you opened them up. And we were forced to use this for customers. It was disgusting.
But then owner never got busted, because he knew somebody from the Department of Health who would alert him a couple weeks prior that an inspection was coming. So everything was scrubbed ultra clean and he bought fresh gallons of real milk as needed. Then once the inspection happened, it was back to the powdered milk rot.
We were allowed to have as much of the ice cream as we wanted for free while working there. The thing is, after a few weeks, workers would get tired of eating so much ice cream, so they would stop.
Not me. Oh my gosh, it was great, because I could experiment with different Sundae combos and all that kind of stuff. But for shakes, I just used water. With extra ice cream.
Best milkshake (and this was coming from the guy who made the fake milk, as he was there the longest), well it was Burgundy Cherry ice cream with simple syrup and malt. And water, of course.
