Abstract: Systems, methods, and other embodiments are described herein for obtaining products from heterogeneous feedstocks containing toxic algae. In one embodiment, a method includes collecting a heterogeneous feedstock. The heterogeneous feedstock is then processed. The embodiment further includes calculating a toxic value for the processed heterogeneous feedstock. It is then determined whether the toxic value of the processed heterogeneous feedstock satisfies a toxic threshold. In response to determining the toxic value does satisfy the toxic threshold, a product is extracted from the heterogeneous feedstock.