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= = Soured milk is a food product, produced from acidify of milk.It is not the same as spoiled milk that has soured naturally & which may contain poison. The acid causes milk to coagulate & form a thicker consistency & inhibits the growth of harmful bacteria & thus improves its shelf life. Soured milk that is produced by bacteria fermentation is more specifically called fermented milk or cultured milk.Soured milk that is produced by the addition of an acid, with or without the the addition of microbial organisms, is more specifically called acidified milk. Milk turns sour due to the growth of microbes found in it.Milk contains a lot of bacteria.To make it not get sour, the bottling company makes sure that they are pasteurized it & make it suitable for drinking & storage. Milk turns sour because as it ages or sits out for too long, the bacteria multiply and consume lactose (milk sugar).Milk has at least a couple types of bacteria which provide a sweet taste and sour taste. One of the ways that milk can turn sour is by adding vinegar to it.Then you have to wait a couple of minute. A very simple way to make sour milk, other than the obvious way which would be just to let it sit and go sour, is to add a little vinegar or lemon juice to the fresh milk. One teaspoon per cup should be sufficient. The acid in milk causes it to coagulate, just like blood. If you add lemon juice or vinegar, it will sour quickly, too. If you leave the milk out for too long after you use it, you will speed up the process.

= Work Cited = How to Make Sour Milk for Baking?" // - Ask.com Answers // . N.p., n.d. Web. 26 Sept. 2013. <[]>.
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Moyer, Richard. //McGraw-Hill Science //. New York: McGraw-Hill School Division, 2000. Print.
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"Soured Milk." //Wikipedia //. Wikimedia Foundation, 29 Aug. 2013. Web. 26 Sept. 2013. <[]>.
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Why Does Milk Turn Sour?" //- Ask.com //. N.p., n.d. Web. 26 Sept. 2013. <[]>.
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