Official licensed Duff (a high-end lager) has been released in Chile, Germany, and parts of Europe to combat unauthorized bootlegs.

Because Matt Groening initially refused to license the brand to avoid encouraging underage drinking, finding "real" Duff is tricky:

You can buy freshly tapped Duff Beer at Moe's Tavern or the Duff Brewery in Orlando and Hollywood. However, they do not sell it in takeaway 6-packs.

Duff Beer, the iconic drink from The Simpsons , is a bit of a "holy grail" for fans. While there is no widely available alcoholic 6-pack in U.S. stores, you can find official merchandise, non-alcoholic drinks, and localized brews. Can You Buy "Real" Duff Beer?

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