Two U.S. companies, inTEST Thermal Solutions (intestthermal.com) and ApolloXstill, (apolloxstill.com), have collaborated to provide a closed-loop extraction system for the cannabis industry. ApolloXstill is the first closed-loop, turnkey, on-demand ethanol extraction system that takes biomass to high quality, winterized crude in a high-speed, all-in-one processing system.