How traditional French butter is made in Brittany

Insider's Claudia Romeo traveled to Brittany, France to meet with Jean-Yves Bordier, a butter artisan who brought back to France the 19th-century technique of malaxage, using a big wooden wheel to knead the butter. To Jean-Yves, the malaxage is a more romantic way to make butter. At his workshop, everything is churned, kneaded, and shaped by hand.