Well I just drove about $30.00 worth of gas out looking for tapioca flour or even clearjel. not to be had anywhere from dinuba ca to fresno ca. So I do have a question has anyone tried grinding tapioca and using it as tapioca flour? any suggestions or ideas. I need it for a home grown blackberry pie and I don't want it to be like the last one I did. you could almost swim in the juice. The berries are frozen and I even cooked down the juice that masserating developed by half. I guess my berries are just to juicy. never had this problem with farmers market berries even grocery store frozen ones. help