Looking for gluten-free, organic tapioca flour. Buy organic tapioca flour online from stores and vendors in the United States, United Kingdom, Canada, and Mexico. Buy now for excellent baking! Tapioca flour is excellent for thickening soups, sauces, and pie fillings. Tapioca is naturally gluten-free and manufactured without GMOs. Tapioca's starchy nature makes it ideal for thickening without adding any additional flavors.