A blue beer with the brand name ”Line” is the product of a partnership between a French firm that wants to popularize algae as a dietary supplement and a craft brewery looking to make its brew more distinctive.
The blue coloring comes from spirulina grown by a company called Etika Spirulina in northern France. Phycocyanin extracted from the spirulina and added to the beer during the brewing process gives it the blue color.
Xavier Delannoy, whose farm provides the spirulina, said 1,500 bottles of the blue beer were sold between October and December last year, and the brewery is now preparing to ramp up production to meet demand.
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