This holds a module for cyclus that blends streams of material into a resulting material. It aims for a goal recipe and can specify an order of preference for using available commodities. It was designed to run as a fuel fabrication facility, but can be used for any purpose that requires a combining of commodities that represent material streams. It was initially developed to run the fco code-to-code comparison. It is New BSD clause-3 licensed to Katy Huff.