This is still bullshit. In the past, relatives raised cows, and a large barrel of milk was just mixed with a little water from the milk container, which was detected by the dairy factory. Sometimes ignored, sometimes deducted points. And various indicators of milk will also be tested. It's easy to find out whether you have fed high protein feed (alfalfa and the like, but this doesn't affect it), whether you have used medicine or not, and whether you have taken antibiotics. But the finished milk we drink cannot be pure milk. Fresh milk is not that strong. Do you really believe that it is "just water shortage"? In fact, it is easy for a thing to fail, and it is also a fact that our country's quality monitoring is not done well. But how can you tolerate the bad situation mentioned above?