The milk gets infected with bacteria present in the environment, some of which produce acids and other compounds as a byproduct of their digestive process when they consume compounds present in the milk. That's what gives it the sour taste and sometimes rank smell.
If you inoculate it with the right strain of bacteria, lactobacillus acidophilus being one, you get yogurt. L. acidophilus consumes lactose, a sugar in the milk, and produces lactic acid that gives yogurt its tangy flavour.
Wine contains ethanol and upon exposure to air, it gets oxidised by the atmospheric oxygen to become ethanoic acid which gives it the sour taste.
Because the acids in the wine attach themselves to the Oxygen in the air changing from bitter to sour. The process is called oxidation.
If it spoils, wine can taste sour as it begins to turn into vinegar.
It turns into vinegar.
Yes, if it has soured. Fresh raw milk does not smell sour. Soured raw milk is fine to use though.
Sour milk or any food that has gone bad.
Smells like a hygiene issue.
Sour milk or any food that has gone bad.
Buy a new backpack
It is a chemical change because there is a chemical reaction occurring that is rotting the milk. An example of a physical change would be if the milk was evaporated or frozen.
Yes and all poor white people smell like sour milk.
Milk is sour because it is spoiled and how milk spoils is if you leave it out so long that it will get so spoiled and it will smell so funny that you will wanna take it out of your refrigerator. So that is why milk is so sour.[ IF YOU DISAGREE TO ANY OF THIS MAKE YOU AN ACCOUNT AND CORRECT ME AND I WILL SEE WHAT YOU SAY AND ADD THAT TO WHY MILK SPOILS].
Probably not. She may have used milk as an ingredient in a beauty lotion of some kind, but actual bathing in milk seems unlikely. Milk would turn sour and curdle in Egypt's hot climate, not to mention the smell of sour milk. I hardly think that Cleopatra would put her body into a sticky, stinky, smell mess like that.
To get a milk smell out of car interior, you can use baking soda on the area and then vacuum up. You may also put vinegar on the spot.
The correct phrase is "The sour milk stinks."
sour milk