A soft drink that isn’t sweet.
Quas is kvass, a fermented rye and barley drink from Eastern Europe, brewed in Edinburgh. Malty, a bit tangy, dry finish. Think dark beer without the alcohol.
- 0% alcohol
- 2.5g sugar per 100ml
- 6.7g fibre per can
- Vegan
5 cans, free next-day delivery. Full refund if you don’t like any of them.
4.9 from 75 Google reviews
Great Taste award winners.
Original in 2024, Ginger in 2026.
As featured in
Three flavours
All three start from the same rye and barley base. If you like dark beer, start with Original. If you like ginger beer or kombucha, start with Ginger.
Mint & Lime Summer batch
Lime and a bit of mint. The lightest of the three, best over ice.
From £17.90 →New to Quas?
Get the Taster 5
£17.90 £3.58 a can, delivery included
1 Original, 2 Ginger, 2 Mint & Lime. Enough to work out which one you like.
- Arrives tomorrow if you order by 4pm, Monday to Thursday. Royal Mail Tracked 24.
- Money back if none of them are for you. Email us within 7 days of delivery and we refund the lot, delivery included.
- Broken or leaking cans get replaced. Send us a photo.
Refund applies to your first order, including the first box of a subscription.
What’s in the can
Scottish water, rye, barley, chicory root fibre and our sourdough culture. That’s the base of every flavour.
The starter came from a family who have baked rye bread with it for generations. It holds over 100 strains of bacteria and yeast, and we’ve kept it going since.
We don’t filter or pasteurise Quas, so the cultures are still alive when you open it. That’s why it ships cold and lives in the fridge.
| Alcohol | Non-alcoholic |
|---|---|
| Sugar | Up to 2.5g / 100ml |
| Fibre | 6.7g |
| Live cultures | 500 billion+ |
| Starter age | 180 years |
| Vegan | Yes |
| Gluten | Contains (rye, barley) |
| Keep at | 2–6°C, drink within 6 weeks |
4.9 on Google
Read all 75 reviews →Very refreshing, had the mint and lime flavour and it was lovely. I had never had or even heard of kvass before but will definitely have again.
Absolutely brilliant product. Delicious and tastes like the real deal unlike supermarket kombucha. Delightful personal customer service too.
The best kvass I have tried here in the UK. It tastes exactly how my mum used to make at home.
Seriously good!! Really refreshing and not overpowering. Love them and they’re made in Edinburgh.
Why I started making it
I stopped drinking in 2014 and got tired of being offered orange juice.
I grew up in Estonia, where kvass is everywhere. You drink it after the sauna and at your gran’s on holidays. In 2020 I was finishing my PhD in Edinburgh, saw it again on a trip to Tallinn, and couldn’t work out why nobody made it here.
So I started brewing in my student room. A family of rye bakers gave me some of their sourdough starter, and that starter is still in every batch we make in Edinburgh.
Anton Puzorjov, founder
The longer version →Questions
Is it like beer?
A bit. It’s made from the same grains and is naturally fizzy, so it sits fine next to a pint. Because it’s fermented with sourdough, it’s tangier and drier than beer.
Is it alcoholic?
No, Quas is sold as non-alcoholic. As with any fermented drink, the exact declaration is on the can.
Is it like kombucha?
Both are fermented and both have live cultures. Kombucha is made from sweet tea. Quas is made from rye and barley, so it’s maltier, darker and less vinegary.
Why does it need the fridge?
It’s unpasteurised, so the cultures are still active. Cold slows them down. Put the cans in the fridge when they arrive and drink them within six weeks. Over that time it slowly gets a little more sour and less sweet.
How much sugar is in it?
Original has 2.4g per 100ml. Ginger and Mint & Lime have 2.5g. For comparison, a regular cola has about 10.6g.
Is it vegan? Gluten free?
It’s vegan. It isn’t gluten free, because it’s made from rye and barley.
Can I buy it in a shop?
Yes, some shops and cafés stock it. See stockists.
Something else? Email hello@quasdrinks.co.uk and we’ll get back to you.
Try all three for £17.90.
Five cans, delivered tomorrow. Your money back if none of them are for you.
Order the Taster 5