About 25 years ago, Fernet-Branca went from a somewhat eclectic drink, shared among the city's old school bartenders, to one of the most iconic spirits in San Francisco. Its polarizing taste profile has been compared to Vicks NyQuil and VapoRub on one end of the spectrum, to a delightful Christmas Tree or Chinese herbs on the other end. How did this divisive Italian spirit work its way into the hearts of San Franciscans? Bay Curious producer Amanda Font bellies up to the bar to find out.

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This story was reported by Amanda Font. Kelly O'Mara contributed. Bay Curious is made by Olivia Allen-Price, Amanda Font, Ana De Almedia Amaral and Christopher Beale. Additional support from Jen Chien, Katie Sprenger, Maha Sanad, Holly Kernan and the whole KQED family.

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