Why a milk man usually adds a very small amount of baking soda to fresh milk during summer season?

Why a milk man usually adds a very small amount of baking soda to fres

1.	Why a milk man usually adds a very small amount of baking soda to fresh milk during summer season?
Answer» To prevent it from getting sour and formation of lactic acid TO make milk basic so that milk will take more time to become acidic and to get spoiled