Kool-Aid is an American brand of flavored drink mix owned by Kraft Heinz based in Chicago, Illinois.

[2] Hastings still celebrates a yearly summer festival called Kool-Aid Days on the second weekend in August in honor of their city's claim to fame.

[10] "Drinking the Kool-Aid" is a phrase suggesting that one has mindlessly adopted a dogma of a group or a (cult) leader without fully understanding the ramifications or implications.

At Jonestown, Guyana, followers of Jim Jones' Temple drank from a metal vat containing a mixture of "Kool Aid", cyanide, and prescription drugs Valium, Phenergan, and chloral hydrate.

Present-day descriptions of the event sometimes claim the beverage was not Kool-Aid, but Flavor Aid,[15] a less-expensive product from Jel Sert reportedly found at the site.

[15] Both brands are known to have been among the commune's supplies: Film footage shot inside the compound prior to the events of November shows Jones opening a large chest in which boxes of both Flavor Aid and Kool-Aid are visible.

[21] Ken Kesey and the Merry Pranksters frequently held and advertised parties they called the Acid Tests, during which they gave out Kool-Aid that was laced with LSD.