Our premium beer is brewed with ancient yeast preserved in amber and revived after 45 million years to provide a distinguished and satisfying taste
So says the web site of the Fossil Fuels Brewing Company.
Beer writer William Brand sampled some in a bar, and wrote about the experience. The description is similar to written descriptions by other beer writers of sampling other beers in other bars.
(Thanks to investigator Julia Lunetta for bringing this to our attention.)