Think all beer is vegan? Not so fast. Some of your go-to brews might have a fishy little secret, literally.
Beer is supposed to be simple, right? Hops, water, barley, maybe some yeast. But what if I told you certain beers are swimming with ingredients that vegans would never approve of? Yes, even your favourite pale ale might not be so innocent.
Grab a pint (or maybe not) and read on because you’re about to find out which popular beers are sinking your vegan vibes.
Understanding Isinglass: The Fishy Ingredient

Isinglass might sound like the name of a cool indie band, but it’s actually a fining agent made from fish bladders. Yep, you read that right. Fish bladders.
Brewers use isinglass to clarify beer by helping yeast and other particles settle to the bottom during the brewing process. The result? A crystal-clear pint. Nice for aesthetics, not so much for vegans.
While most of the isinglass is filtered out before bottling, trace amounts can linger, enough to make that pint decidedly non-vegan. Even if it doesn’t change the flavour, the ethical implications can’t be filtered out.
Suggested read: 14 Sneaky Ingredients Vegans Shouldn’t Overlook on Nutrition Labels
Guinness: A Stout With a Secret

Guinness, the iconic Irish stout, might have seemed harmless, but for years, its brewing process relied on isinglass. Not exactly what you’d expect in your pint of creamy stout!
The good news? In 2018, Guinness overhauled its production methods, ditching isinglass entirely and making all its draught, bottled and canned beers vegan-friendly. This makes it one of the most notable wins for vegan beer lovers in recent history.
However, if you stumble upon an older bottle or keg that pre-dates 2018, you might want to double-check before taking a sip. Look for a vegan label, verify with the Guinness website for their latest product information or send an email.
Cheers to progress, and to enjoying your next pint guilt-free!
The Story Behind Bass Ale

Bass Ale has a storied history, famous for its deep amber hue and smooth flavour. But for vegans, there’s a catch, this classic brew has historically used isinglass in its brewing process.
While Bass Ale remains a favourite for many, vegans may want to steer clear unless updated information confirms a recipe change.
As of this writing, there’s no clear indication that Bass Ale has transitioned to vegan-friendly production methods. Vegans should steer clear unless updated information confirms a recipe change.
If you’re craving a similar amber ale, no need to worry, plenty of vegan-friendly options like Samuel Smith’s Organic Pale Ale or BrewDog’s Punk IPA (among others) deliver all the flavour without the fishy extras.
Other Drinks to Watch Out For: Wine, Mead and More

You’d think wine would be a guaranteed vegan option, but here’s the twist: some wines are clarified using animal-derived agents like isinglass or casein (a milk protein). These fining agents help remove particles and improve clarity but can leave trace amounts behind, making them unsuitable for vegans.
The good news? Many winemakers now use vegan-friendly alternatives, such as bentonite clay or activated charcoal. Look for wines labelled “vegan” or check resources like Barnivore for a comprehensive list.
Similarly, traditional mead often contains honey and may also involve fining agents like isinglass. Even ciders and spiked seltzers can sometimes use animal-based additives. When in doubt, opt for vegan-certified options or consult Barnivore.
So, next time you pour a glass of red, white or bubbly, take a moment to check because a truly vegan wine tastes even sweeter!
The Alternative: Vegan-Friendly Brews

Fear not! There’s no shortage of brews that are 100% vegan and totally sip-worthy. Many breweries have embraced ethical brewing practices, swapping out animal-derived fining agents for vegan alternatives.
In the UK, several breweries are leading the vegan charge:
- Black Isle Brewery (Scotland): Offering a range of organic beers, their cans and kegs are vegan-friendly; however, cask options might not be.
- Heineken: Their flagship beer is brewed without animal-derived ingredients or filtration agents, making it a safe choice for vegans.
- Top Rope Brewing (Liverpool): This microbrewery focuses on bold-flavoured, vegan-friendly beers, some of which are available on cask. Their pump clips proudly display ‘vegan friendly’.
- Little Valley Brewery (West Yorkshire): All their beers are both organic and vegan, offering a range of styles to suit different palates.
- Hepworth Brewery (West Sussex): Known for producing organic and vegan-friendly beers, they focus on sustainability and quality.
- Stroud Brewery (Gloucestershire): Their canned and kegged beers are organic and vegan, though it’s worth noting their cask varieties may not be.
Want to explore even more options? Sierra Nevada Pale Ale and Brooklyn Brewery Lager are excellent vegan-friendly options for those seeking international flavours.
To find your next vegan pint, look for labels stating “vegan-friendly” or certifications like the Vegan Society logo. Not all vegan beers are labelled, though, so resources like the previously mentioned Barnivore can be a lifesaver for checking specific brands.
And remember, asking your local pub about their beer list never hurts!
Educational Resources for Curious Vegans

Want to stay informed about vegan-friendly drinks? There are plenty of resources to help you navigate the world of ethical sipping.
- Barnivore: A comprehensive database of vegan beer, wine and spirits. Just search your favourite brand to find out if it’s vegan-friendly.
- Vegan blogs and podcasts: Many vegan influencers share tips, reviews and updates on the latest ethical beverage trends.
- Apps like HappyCow: While often used for food, HappyCow also highlights vegan-friendly drinks in certain regions.
- Social media groups: Join vegan communities on platforms like Facebook or Reddit where members share their discoveries and recommendations.
Your journey doesn’t have to be solo. With these tools and communities, you can sip confidently knowing you’re making informed, ethical choices!
The Bright Future of Vegan Drinking

The future of vegan drinking is looking increasingly exciting, with industry giants and emerging craft brewers embracing plant-based practices.
From innovative brewing methods to the use of alternative fining agents like bentonite clay, the options are expanding.
The rise of small-scale, experimental breweries is also driving creativity in vegan-friendly drinks, with flavours and styles that cater to adventurous palates.
Expect to see more brands proudly displaying “vegan-friendly” labels, making it easier than ever to choose ethical drinks.
Large-scale breweries are taking note of the growing demand for transparency and sustainability, while smaller producers are pushing the boundaries of creativity in vegan-friendly alcohol.
To stay ahead of the curve, keep an eye on evolving trends and explore local breweries experimenting with vegan techniques. The next big innovation could be right around the corner!
So, here’s to a future where your pint is as kind to animals as it is to your taste buds.
The Bottom Line
Exploring vegan beers is more than just a journey of discovery it’s a chance to enjoy incredible flavours while staying true to your values.
Share your favourite finds with friends, ask your local pubs to stock more vegan-friendly options and keep the conversation going.
With every sip, you’re not just savouring great taste, you’re supporting a movement for more ethical, sustainable choices. Cheers to that!
Related Posts:
- The Best & Worst Pub Chains For Vegans in the UK
- Some People Don’t Think Fish Are Animals. Here’s What Science Says
- 14 Sneaky Ingredients Vegans Shouldn’t Overlook on Nutrition Labels

Jac has been vegan for 15 years – long enough to wonder if tofu owes her a loyalty card. Hailing from Scotland, she enjoys the breathtaking scenery and believes vegan haggis deserves more appreciation. A proud mum to a curious and energetic daughter, Jac spends her time hiking scenic trails, devouring books, practicing yoga, honing her badminton skills, and creating colourful artwork with her trusty colouring pens. She’s passionate about living a vibrant, compassionate, and cruelty-free life, all while championing the magic of tofu.
Didn’t know that Guinness used fish bladders at some point. What’s it using now then? And how do we find out what other beers are doing?
Fascinating read! It’s incredible how beer crafting includes such unique ingredients. Cheers to the vegan alternatives making a splash. It’s a great time to be a beer lover with so many options.
Sounds good, but do these vegan options actually taste the same? Any recommendations?
They can indeed. The key is in the filtration process that doesn’t compromise on the beer’s body and flavour. Look out for beers that use Irish moss or pea protein!
All these alternatives are fine and dandy, but the real taste comes from traditional methods. These changes are just pandering to trends.
omg yes!!! love seeing more vegan booze options 🌱💚 it’s all about those small changes making a huge impact, right???