Last reviewed May 2026 · 1 min read

Is Beer vegan?

Also known as: Ale, Lager, Stout, Bier

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Source can be plant or animal.

In short

It depends — Some brewers, particularly of traditional British cask ales, use isinglass (from fish bladders) to clarify their beer.

01 · The basics

What is Beer?

An alcoholic beverage made by fermenting starches, typically from malted barley, and flavored with hops. Some beers undergo a clarification process or contain flavor additives.

02 · The source

Where it comes from

Some brewers, particularly of traditional British cask ales, use isinglass (from fish bladders) to clarify their beer. Additionally, certain styles like milk stouts contain lactose (milk sugar), and some creative brews may use honey.

03 · Alternatives

Best vegan alternatives

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Frequently asked

FAQ

Is Guinness beer vegan?

As of 2017, all Guinness Draught produced in kegs, bottles, and cans is vegan. The company stopped using isinglass for filtration and now uses a vegan-friendly method.

What is a 'milk stout' and is it vegan?

A milk stout is a style of dark beer that contains lactose, a sugar derived from milk. The lactose is unfermentable by beer yeast, so it adds sweetness and body to the final product, making it non-vegan.

Are major beer brands like Budweiser or Corona vegan?

Yes, most major international and North American lagers, including Budweiser, Coors Light, Miller Lite, Corona, and Heineken, are vegan. They do not use animal-derived fining agents in their production process.

Commonly found in

Beer-battered foodsStews and chilisBreadsCheese saucesMarinades