0
It is bacteria that causes it to go sour.
The bacteria uses up the milk, then they produce acids that cause the milk to spoil.
Spoiled milk includes a foul smell and lumpy chunks. If milk is spoiled for too long, the milk may even turn green.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoMilk is considered a very good growth medium for microorganisms.
This is due to the neutral pH that is suitable for spoilage organisms as well as the protein, fat and carbohydrate content of milk.
This makes it the ideal growth medium and when microorganisms multiply the pH is lowered (due to increase in lactic acid) and the protein is damaged. This causes the milk to go sour (due to lactic acid build up) and curdle (low pH along with damaged protein).
Wiki User
∙ 13y agoBecause it breaks down the nutrients.. while its breaking down the nutrients, different smells seem to disipitate
Add your answer:
Earn +20 pts
Can a dogs milk sour?
Any milk can go sour.
How long does it take for a container of milk to sour?
It takes about anywhere from 5 - 6 weeks for milk to go sour
Why does milk go sour?
The souring and curdling of milk is caused by bacteria.
Why does pasteurisation make milk much longer?
Pasteurisation kills any microorganisms (e.g. bacteria, fungi) that might be in the milk that could cause it to go sour or spoil.
What is the quickest milk to go sour?
Soya :) x
What would cause milk to curdle in a cup of tea?
its off ! Or it is about to go off (sour) and the heat of the tea has set the process "over the edge".
What does milk turn into if its gone off?
It will curdle and go sour
How does bacteria make milk go sour?
By digesting it before you do.
Which acid is produced when milk go sour?
Tartic acid is present in sour milk. Generally the source of tartic acid is lemon, therefore sour milk gives taste of lime. Therefore it is clear that tartic acid is there. Sometimes when we want to make Paneer from milk, we put 1 or 2 miligram tartic acid to make milk separate from water.
How do you make milk lumpy?
Leave it to get sour, it will then go solid - like cheese!
If you scare a cow will its milk go sour?
I don't think so.
How long before milk goes sour?
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!!
