Original
Malty, with dried fruit and a dry finish. The closest to traditional kvass.
Start here if you like dark beer or rye bread.
Shop OriginalA 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, with a dry finish. Think dark beer without the alcohol.
Try all 3 flavours for £17.90
5 cans with free next-day delivery. Full refund if you don’t like any of them.
- 0%alcohol
- 2.5gsugar per 100ml
- 6.7gfibre per can
- 4.9★75 Google reviews
Great Taste award winners
Original in 2024, Ginger in 2026. Judged blind by food critics, chefs and buyers.
“Attractively ‘real’ and properly fermented. A sophisticated non-alcoholic beverage.”
Great Taste judges on Original
Ginger
Fresh ginger heat over toasted grain. Sharper and livelier than Original.
Start here if you like ginger beer or kombucha.
Shop Ginger
Mint & Lime
Summer batchLime and a bit of mint. The lightest of the three, best over ice.
Start here if you want something to cool down with.
Shop Mint & LimeEvery can is still alive.
We don’t filter or pasteurise Quas, so the sourdough cultures are still working when you open it. That’s why it ships cold and goes straight into the fridge.
Over its six weeks it slowly gets drier and a little more sour. Some people wait for that.
- Age of our sourdough starter
- 180 years
- Kinds of bacteria and yeast in it
- 100+
- Live cultures in every can
- 500 billion
Water, grain, a starter, and time
-
Scottish water
The base of every batch.
-
Rye and barley
Turn the water into a dark, malty wort.
-
Sourdough starter
Our 180-year-old culture starts the ferment.
-
Time
The cultures dry it out and build the flavour. Then it’s canned, unpasteurised.
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.
The refund applies to your first order, including the first box of a subscription.
4.9 out of 5 on Google
Read all 75 reviewsVery 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.
Oh, I looove Quas! This version is more refined, kvas taken to the next level.
Next day delivery for free, as promised. Tried the Original, which was lovely.
“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
Read the longer versionQuestions
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.
How much sugar is in it?
Original has 2.4g per 100ml. Ginger and Mint & Lime have 2.5g. 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