Otto's Cassava Flour is the very highest quality cassava flour available. Other cassava flours are hand peeled and sun dried. That sounds romantic, but it can produce undesireable results. As the cassava dries in the sun it ferments and takes on a sour, musty smell and taste. If it happens to rain, it must sit longer, allowing opportunity for mold to grow.
Otto's Cassava Flour, on the other hand, is thoroughly peeled and baked into a beautifully clean smelling and tasting flour you can count on again and again. This proprietary method leaves no chance for mold or fermentation to develop.
Cassava flour is also gluten free and naturally rich in resistant starch.