Either you're talking about *sour* or sore..
Sour is something opposite of sweet. Vinegar is sour.
A sore is a wound, an injury.
Flour
Yes, if it has soured. Fresh raw milk does not smell sour. Soured raw milk is fine to use though.
no, but it tastes horrible.
To make soured milk for baking, simply add 1 tablespoon of vinegar or lemon juice to 1 cup of milk. Let it sit for 5-10 minutes until it thickens and curdles slightly. This soured milk can be used as a substitute for buttermilk in recipes.
When wine is completely soured, it forms wine vinegar, which can be mixed with oil to make salad dressing, or used to pickle cucumbers, etc. If the wine is only partially soured, I have found that if you mix it with grape juice, or with grape flavored drink of some kind, the result can be quite drinkable (and even delicious).
sour kraut
yes
It is in soured whine.
experation date
tootsie rolls
Ice tea with lemon
When milk goes bad it is called spoiled or soured.