Guinness finally went completely vegan in April 2016. This includes all Guinness drinks.
What makes alcohol not vegan?
Many breweries use a product called isinglass in the production of their beer. This substance is made from the swim bladders of certain fish and is used to make the beer clear, rather than cloudy. It remains a common practice throughout the industry making many beers unsuitable for both vegans and vegetarians. Some beers can also have other animal ingredients added to them, such as milk stouts, which contain lactose, and oyster stouts, which really do contain shellfish.
Other vegan stouts