The lactic acid bacteria that are present in the milk have grown and increased the acidity of the milk, thus souring it.
it is made from something special which makes it happen :)
It takes about anywhere from 5 - 6 weeks for milk to go sour
Buy a regular milk and leave it out a long time.
the sour milk stank
How long can a casserole containing sour cream be safe in refrigerator
On the milk bottle there should be an experation date. Some time after the experation date it shold go sour. But dont wait too long!!
sour milk
Sour milk is milk that is off. You drink, you get diarrhoea. So don't drink sour milk.
What kind of warm? Some people say that heated warm milk helps them fall asleep. If you left the milk out too long, then it could become sour and possibly make you sick. Usually if it smells and tastes okay, it is fine. However, warm milk will not last as long as that that has been kept refrigerated.
Two weeks
Any milk can go sour.
Milk is sour because it is spoiled and how milk spoils is if you leave it out so long that it will get so spoiled and it will smell so funny that you will wanna take it out of your refrigerator. So that is why milk is so sour.[ IF YOU DISAGREE TO ANY OF THIS MAKE YOU AN ACCOUNT AND CORRECT ME AND I WILL SEE WHAT YOU SAY AND ADD THAT TO WHY MILK SPOILS].