I've heard that diet of the individual can alter taste.
acids
Miracle Fruit!
Lactic acid produced by fermentation.
it taste sour a little sour
damaged taste buds, severe head trauma, brain damage or a birth defect.
They taste SOUR
You taste lactic acid when the milk becomes sour. Acids, in general, sour.
Yes they taste SOUR
Acids have a sour taste.
because there is an ingredient that makes a acidy solution to make a sour taste in the mixture
Sour taste is a result of a chemical property. Certain chemicals - acids in particular - produce a sour taste when they come in contact with the appropriate taste buds. The chemical interaction of those chemicals with the taste buds yeilds a stimulus of those taste buds that the brain interprets as "sour".
It's very scientific... Apparently, the citric acid in your mouth causes a reaction with the sodium hydrogen carbonate and that causes the sour taste but I'm not completely sure on that so be careful. However, I am sure it is to do with the citric acid and that has sourness in it.