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.
1 Post-nasal drip, which often occurs with allergies or throughout the course of a sinus infection. 2  Side effects of over 400 medications may result in changes in taste or moisture level in the mouth. 3  Acid reflux, which can also cause a bitter or sour taste in the mouth.