JD Ellis, AKA Graywolf, joins us to tell the tales of early hydrocarbon extraction, and the path that led him to designing a closed loop BHO extraction system. We cover extraction equipment, the closed loop design process, some crazy stories from the early days, and how JD applies extraction science in the kitchen. (Of course he does!) Graywolf is a pioneer of cannabis extraction, and his contributions have helped shape an industry. From all of us extractors out here, thank you JD!