After decades of decline, the "Guinness effect" is helping nitro-served dark beers grow in popularity, with stout consumption in the U.K. rising 43% from 2019 to 2024. https://www.japantimes.co.jp/business/2026/01/26/guinness-stout-boom-beer/?utm_medium=Social&utm_source=mastodon #business #guinness #beer #diageo #alcohol #drinking