Eww! That is too sour!

There are foods and beverages that when consumed taste sour to us. How does that happen exactly? The H+ ions react with some of the molecules on the side the tongue and then an action is sent to the brain telling it that it “sour.” Weak acids, that have a low pH number, are that give the sour or tangy taste to drinks and other foods. Citrus fruits like lemons, limes or oranges have citric acid as well which contributes to the week acids.

This is what makes foods and beverages sour. If consumed a lot in a short amount of time the tongue does get “injured” and eating after that is painful for some people. It is as though the acid is attacking your tongue. Another way that is easily seen how acid react in your tongue after having a large quantity is with candy. If consumed enough sour skittles you can cause your tongue to bleed and after it is very hard to eat or drink anything without being uncomfortable.