The rule of thumb is that if the milk is frozen, you need to turn it down.

( Comma, Tue 12 May 2009, 16:20, archived)

We had a fridge which would be cool at the front but at the back would freeze milk.
So we just kept the cheese at the back and milk in the door.
( Rev. Cleo still alive, Tue 12 May 2009, 16:21, archived)