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The more common reason is bacteria in the milk produce lactic acid waste product. Lactic acid is sour. The lumpiness is the result of the lower pH from the lactic acid making casien (a milk protein) precipitate.

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15y ago
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14y ago

Freeze it. Or keep the refrigerator turned on really cold to make it last longer; you can always freeze part of it or buy a smaller sized carton if it goes sour too fast for you.

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10y ago

A lot of people preserve milk by freezing it. It slows down the process. You can also preserve it by canning it. You would do it just like you would any other items you have canned.

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15y ago

I don't know. If this is what you are looking for it turns into a strong Acid.

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13y ago

What you do to stop food from being sour is don't spit on your food when it is in your mouth. I'm not joking it actually does work.

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7y ago

Sterilize it and then hermetically pack it.

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14y ago

Keep it in the cow

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Q: How do we prevent milk from turning sour?
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Related questions

Is milk turning sour a physical or chemical change?

Milk turning sour is a chemical change. It occurs due to the fermentation of milk sugars by bacteria, leading to the production of lactic acid, which changes the taste and smell of the milk.


Is milk turning sour a physical change?

No, milk turning sour is a chemical change because the bacteria in the milk interact with the lactose to produce lactic acid, changing the composition of the milk.


milk tuning sour is an chemical change?

Yes, milk turning sour is a chemical change. This is because the bacteria present in the milk ferment the lactose sugars, producing lactic acid which changes the chemical composition of the milk, resulting in the sour taste and smell.


Why is milk turning sour during summers in chemical change?

During summers, milk can turn sour due to a chemical change called souring. This is caused by the growth of bacteria in the milk, which metabolize the lactose (milk sugar) into lactic acid. The lactic acid decreases the pH of the milk, giving it a sour taste and causing the proteins to denature.


Is fresh milk turning sour a physical property?

No, it's a chemical property


What is correct The sour milk stunksOR The sour milk stanks?

The correct phrase is "The sour milk stinks."


Why does bacteria affect the pH value of milk?

as the bcteria chaanges the ph to an acid thus turning the milk sour thereby changing the ph value.


Which is easier to digest sour milk or sweet milk?

sour milk


Why can't we consume sour milk?

Sour milk is milk that is off. You drink, you get diarrhoea. So don't drink sour milk.


Can a dogs milk sour?

Any milk can go sour.


During summer season a milkman usually adds a very small amount of baking soda to fresh milk Give reason?

Acts a bit like preservative would. it makes milk a bit alkaline so as to reduce the pace of bacteria acting on it ,as they add acids (e.g. lactic acid) to the milk and turn it sour. this keeps the milk from becoming sour for a long time.


Can sour milk to too sour for a recipe?

No Your right sour milk can never be too sour for an recipe.. I agree with you on that one.