This Barcelona baking institution is proudly 100% organic, meaning that only certified organic ingredients pass its doors. The flour, butter, eggs and every fruit and vegetable used in its sweet or savory treats are all topnotch. In addition, they use a biodynamic sourdough which means that the naturally occurring yeasts present in the biodynamic flours are left to ferment the dough, which is what causes the dough to rise. The longer fermentation and use of special organic flours mean that these breads are much easier for the body to digest and assimilate, and make for an altogether much more nutritious (and delicious!) experience.