Good Gut Tribe is a brand set up by professional fermentation artists, to bring you some extremely high quality cultures! Not only our all of cultures regularly inspected, but they are also grown in our dedicated fermentation station, an area in our facility exclusively designed for the growth of cultures. Organic Gluten Free Sourdough Good Gut Tribe Sourdough is made from the natural occurring yeast and lactic acid bacteria in flour. It is often also used to name breads made using the culture. Gluten free bread itself is a relatively new invention and sourdough starters that use gluten free flours are often tricky to produce. Our organic gluten free sourdough starter is based on brown rice flour.