In honor of the release of our new book TODAY, we bring you a Gastro Obscura Classic: Inside a living, breathing collection of sourdough starters in Belgium

Gastro Obscura: A Food Adventurer's Guide is a whirlwind tour of the world's edible wonders. Order your copy today!

Read more in the Atlas: https://www.atlasobscura.com/articles/sourdough-library