What causes milk to spoil?



  1. 0 Votes

    Changes in temperature can cause milk to spoil and curdle, especially frequent temperature oscillations between warm and cold. This can cause the growth of bacteria which converts the lactose found in milk into glucose and galactose, leading up to the production of lactic acid. It is this lactic acid that helps form the curd that causes curdling of milk. If this wasn’t enough, mold can then begin growing as bacteria forms on the curd. The end result is spoiled milk.

  2. 0 Votes

    Please refer to the attached link.  Mainly, milk spoils when it is exposed to warmer temperature changes, which allow bacteria to grow in the milk making it curdle.  The more bacteria, the more curdling and the more pungent the smell – when you see milk like this, throw it away!

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