https://apnews.com/article/danish-golden-age-beer-paintings-1717e9bfe5a9d253e24a0a5ebc1398cf

NEW YORK (AP) — Danish painters in the 19th century may have turned to an unusual source for some of their supplies: breweries.

Researchers examined paintings from the Danish Golden Age and found traces of yeast and grains. That suggests painters were turning to byproducts from local breweries to prepare canvases, they reported Wednesday in the journal Science Advances.