WorldEuropeFood & drinkSenior executive Grainne Wafer’s evangelical belief in Guinness has helped the drinks giant weather years of falling sales as beef and spirit consumption drops.Since Grainne Wafer began leading the brand in 2019, Guinness has gone from frequently lagging Diageo’s overall performance to posting a double-digit compound annual growth rate. BloombergAnna PeeleJun 27, 2026 – 5.00amGrainne Wafer is embarking on the surprisingly intricate task of pulling a perfect pint of Guinness.First step: inspecting the cleanliness of the glass. It’s Guinness-branded, as it should be at every bar where the Irish stout is served on draft.Bloomberg BusinessweekSubscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Latest In EuropeFetching latest articles
Meet the Irishwoman saving Diageo from falling alcohol sales
Senior executive Grainne Wafer’s evangelical belief in Guinness has helped the drinks giant weather years of falling sales as beef and spirit consumption drops.
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