Fuente: WIPO "tomato" A closed couplable extractor has a plurality of tubes that function as extracting chamber tubes and/or solution receiver tubes where the tubes are fixed or reversibly connected. Tubes from two closed couplable extractors can be placed in proximal contact to exchange heat between tubes in coupled extractors. Adjacent pairs of tubes in an extractor are connected by at least two transfer conduits, allowing positioning the pair of tubes a higher and lower tubes for distilling vapor through vapor conduits to higher tubes and draining extract solution through solution conduits to lower tubes. The extractor has at least one valve to isolate the extractor from ambient and optional valves to isolate tubes within the extractor. Valves can be couplable valves that permit one or more tubes to enter and exit the system without removal of air or loss of liquid to the environment during these steps while performing extraction processes.