Well if the milk is warmer then it will make sour milk:D
What Would Happen If You Mix Vinegar And Milk?
It become cheese
Not so sure,but I do know what happens if you put milk, vinegar and baking soda together. I t fizzes up while rising. Really messy!
It will turn sour. That is why in many cook books, when they say to use sour milk but if you do not have add a tsp. Of vinegar