Blaand

Blaand, or bland, is a fermented milk product made from whey. It is acidic and has very low alcohol content.[1]

Blaand has been a traditional drink made by farmers for their own use in Scotland, Iceland, the Faroes, and Norway for centuries. It was never commercialized; production ended in the mid-20th century. In these areas it was the most common daily drink before the introduction of modern drinks like tea and coffee.[2]

Blaand could be made by diluting the whey with water first and then letting it sour.[3][4]

Another approach was to put the whey into great vats, where it was left to sour; before drinking some of the soured whey was mixed with water to reduce the acidity. The Norwegian name, "blande," simply means "mix,"[5] and the Scots word can mean the same.[6]