Anita Šumer is a passionate, self-taught, 100% sourdough baker and teacher, based in Slovenia who has become an international sensation – she now has over 70, 000 followers on Instagram @sourdough_mania. She started baking sourdough when her husband was ill and could not eat yeasted bread. So successful has she been that she is now teaching sourdough baking around the world; 9 countries and …