Kool-Aid's association with Jonestown has turned into a common meme and saying: An Internet meme depicts the Kool-Aid man in relation to Jonestown. The surprising thing is that all the sources on the massacre say the powder was the grape variety of another drink brand, Flavor Aid.
Causes of Mouth Sourness. 1  Invariably, anaerobic bacteria produce a sulfur smelling sour taste and bad breath, that you may face in the morning. 2  Posterior nasal drip is another cause for sour taste. 3  Acidity due to a reflux of the stomach contents causes extreme sourness.
In addition, people with diabetes often complain of bad breath and bitter, metallic, or sour tastes. The bacteria that cause bad breath, taste disturbances, and dry mouth produce sulfide molecules particularly at the back of the tongue â an acidic, sugary, dry, anaerobic environment where bacteria thrive. If left untreated, dry mouth can lead to many oral health issues including gingivitis and gum disease.