Fun piece from SmithsonianMag for those of us who like Irish history and love Irish butter (who doesn’t?).
So what is Bog Butter? It’s exactly what it sounds like—butter made from cow’s milk, buried in a bog. What makes it special is its age. After spending so much time in the cool, damp peat, it starts to take on the appearance and consistency of paraffin wax. According to a study on bog butter by researchers from the University of Bristol, some of the chunks are non-dairy. When analyzing carbon isotopes in nine samples of the butter, they found that six of them were indeed dairy products, while the other three were from animals, perhaps tallow (rendered fat) stored for later use.
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