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Simply, fermentation happens.
Milk contains bacteria. When the milk is not refrigerated, the bacteria are very happy and their populations grow. The metabolism of the bacteria lowers the pH of the milk, thus souring it. This will eventually happen to fresh milk that is refrigerated, too. The cold only slows the growth and does not stop it.
It's probably from something that is or was spoiled. I think it's also because something could have spilled that was spoiled and the smell stayed with it. To get rid of it try using Baking Soda.
Because the bacteria that cause souring continue to grow, but they grow at a slower rate in the refrigerator as compared to their growth rate at higher temperatures. Although pasteurization removes pathogens, other viable microbes will remain though at reduced populations.
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Explain the Milk sours if left out for a day or two but will last two weeks in the refrigerator?
Milk contains bacteria. Bacteria reproduces. When bacteria reproduces it lowers the pH of milk. When the pH of milk is lowered, Milk tastes sour. Bacteria reproduces faster at room temperature than it does at cold temperatures. So. Your milk will last longer in a refrigerator.
Is a bottle of milk that sours a physical or chemical change?
This is a chemical change.
What type of property is observed when milk sours?
Milk souring is a chemical property, as it involves a chemical change in the milk caused by the action of bacteria that convert lactose into lactic acid. This change alters the taste and texture of the milk.
Is sour verb noun or adjective?
The word 'sour' is a verb (sour, sours, souring, soured), an adjective (sour, more sour, most sour), and a noun (sour, sours). Example uses: Verb: Your milk will sour more readily if you keep it in the door of the refrigerator. Adjective: The sour cherries make excellent muffins. Noun: I'll have a whiskey sour please.
Is milk sours a example of physical change?
No, milk souring is an example of a chemical change. When milk sours, bacteria ferment the lactose in the milk, producing lactic acid, which changes the composition and properties of the milk. This is a chemical reaction, not a physical change.
When milk sours does it become a physical change?
No it is a chemical change because you change it back to normal.
Explain why curd forms when milk sours?
When milk sours, the bacteria present in the milk ferment lactose (milk sugar) into lactic acid. This causes the proteins in the milk, primarily casein, to coagulate and form curd, which is the solid component of sour milk.
What can yaks do?
The animal, I assume you are thanking about, has been a sours of milk for the people living in North West china. There mead can also be rich sours of nutrias. And lets not forget they can be as soft as a teddy bear.
When milk sours it undergoes a chemical change because?
yes because it is a different substance than before :)
Is it harmful to keep hot milk in refrigerator if I want to drink cold milk?
No, the hot milk should NOT spoiled if you keep in refrigerator.
What is Sours's population?
The population of Sours is 1,774.
How to store the milk?
You to store it in the refrigerator .
