Beer School › Sour beer · Fresh & Fruity
Smoothie sour
A smoothie sour is a sour beer full of fruit purée, often with dessert-like additions such as vanilla, and sometimes lactose. It tastes fresh and tart, fruity and sweet, with plenty of body.
- Entry levelEasy to start with
How it usually tastes
- Bitter
- Sweet
- Sour
- Roasted
- Fruity
- Full
Average for this style; every beer has its own accent.
What is it?
Myth or fact?
Myth
‘Smoothie sour is an official beer style.’
The big style guides, the BJCP and the Brewers Association, do not recognise the name. In 2021 Untappd did make a category for it.
Myth
‘A smoothie sour is just fruit and beer, so dairy-free and vegan.’
Not necessarily. It may contain lactose (milk sugar) or another dessert ingredient, and marshmallow crème, for example, contains egg protein. Check the label.
Partly true
‘You can just store a can of smoothie sour warm in the cupboard.’
That depends on the beer. Beer with a lot of unfermented fruit can re-ferment in the can. If it says 'keep cold', stick to that.
Where does it come from?
How to pour it
A good starting point: follow the storage and serving advice on the can. If it says 'keep cold', then really do leave it in the fridge until you pour it.
Taste it yourself
Pühaste Lovers Between Garden Wallssour, sweet, juicy fruit, creamy€5,95
Funky Fluid Gelato XTREME: Baltic Pancakesweet, fruity, crisp sour, full-bodied€8,95
Funky Fluid Gelato XTREME: Out of Ordersweet, full fruit, thick, lightly sour€8,95
Terms
- Lactose
- Milk sugar that brewers add for a lasting sweetness, known from milk stout, and which falls under 'milk' in the EU allergen list.
- Kettle souring
- A quick way to make beer sour: lactic acid bacteria sour the wort in the brew kettle, usually in one to three days; after that the souring is stopped, for example by boiling, and the beer ferments as normal. According to the BJCP, many modern sour beers are made this way, as a quick alternative to ageing in barrels.
- Lactobacillus ('Lacto')
- A lactic acid bacterium that converts sugar into lactic acid: in ordinary beer it counts as a spoiler, but brewers also use it deliberately for sour beer, such as Berliner Weisse.
- Mouthfeel / body
- How a beer feels in your mouth: how full or thin it is (the body), how much carbonation it has and whether it is, for example, creamy or rather astringent.
Sources for this page
- BJCP 2021 Style Guidelines — 29C Specialty Fruit Beer
- BJCP 2021 Style Guidelines — 28C Wild Specialty Beer
- BJCP 2021 Style Guidelines — 29A Fruit Beer
- Brewers Association 2026 Beer Style Guidelines, published by the Brewers Association
- Untappd Product Updates — Style Changes, Fall 2021 (25 oktober 2021)
- The Drinks Business (2021), New 'smoothie sour' beer trend takes off in the US (archiefkopie)
- Dan Russo, Brew Your Own — Smoothie Sours (2021)
- Good Beer Hunting (2018), It's Lit — The Unfortunate Trend of Exploding Cans in Craft Beer
- Verordening (EU) nr. 1169/2011 betreffende de verstrekking van voedselinformatie (allergenen: art. 9, 16, 21 en bijlage II)