A closed-loop system means that the entire extraction process takes place in sealed vessels so that the solvent never comes into contact with the outside atmosphere.

That's also closed-loop, but it's more a tabletop, personal-sized unit with a Rotovap technique. Can you make different types of concentrate — shatter, budder, RSO — with it, or just one kind ...

DENVER, CO / ACCESSWIRE / December 5, 2014 / Novagant Corp. ( OTC Pinksheets: NVGT ) is pleased to announce its new Closed Loop Botanical Extractor product line for the extraction of essential ...

Case could determine how cannabis manufacturing industry handles ‘patent trolls’ and impact closed-loop cannabis extraction equipment across U.S.DENVER--(BUSINESS WIRE)--ExtractionTek Stainless (ETS), ...