DUALITY Blackberry Gose
DUALITY Blackberry Gose
DUALITY Blackberry Gose
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DUALITY Blackberry Gose
DUALITY Blackberry Gose
DUALITY Blackberry Gose

DUALITY Blackberry Gose

3.9% Fruit Sour by Mammoth Beer
£22.50
Case Of Beer
Case Of Beer

Fermentation in collaboration.


Duality’s artwork is predominantly inspired by nature; the arrangement of geometric spheres evoke the natural form of blackberries. Artist Dan Junsei combined this with visualisations of atomic particles, and a colour palette based on the colour of the natural ingredient we’re championing.


Duality is a product of a dual fermentation; a light ale fermented with Voss Kveik yeast and Lactobacillus Plantarum bacteria. The yeast provides the bulk of the alcohol, whilst the bacteria creates the lactic acid for this sour’s signature tartness. 60kg of British blackberry purée was added to the fermenter, as well as 1kg of Atlantic sea salt. The result is a light yet complex sour, brim full of juicy berry flavours, as well as a spiky sourness that is rounded off with a delicate saline finish.


Duality is unfiltered with a natural haze (meaning it is suitable for vegans) and best enjoyed when stored cold and drunk as fresh as possible.


Style: Blackberry Gose

ABV: 3.9%

Malt: Extra Pale Maris Otter, Wheat Malt, Dextrin Malt

Additions: Blackberry Puree, Atlantic Sea Salt

Yeast: Voss Kveik, Lactobacillus Plantarum


Artwork, Photography, Design by Junsei Daniel