Their food in captivity is a mixture of cuttlebone, porridge oats, grass pellets, trout pellets and additional vitamin supplements .

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"Pinch a cup of porridge oats from the breakfast buffet, tie it up in a sock, float the sock in a hot water, then use as a puff to massage your body, " Coombe added.

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Kadeau Copenhagen showcases several specialities from Kadeau Bornholm, including fried herring served with porridge oats, kale, apples and malt, octopus and oyster partnered modishly with celery, Jerusalem artichokes, dill and cucumber, and an earthy rustic dish of sweetbreads with cauliflower, black trumpet mushrooms, brown butter and rowanberries.

BBC: Copenhagen��s gritty gastronomic quarter