Rotovape
Not the rotovap gw. The copper thing at the very beginning. Looks like a distiller of sort. Maybe to reclaim solvent, or???? So, Its not some kind of flash chromatographyish thingy TMB, RB?
Gaggia distiller.... am i on to something here or not....
A cheap enamel stock pot on your stove filled half full of water with the lid sealed shut and a hole drilled in the top for a copper coil (or thrift store pressure cooker) would work just as well, since you can use more than 1 1/2 cups of water. Serious essential oilmakers use superheated steam, it works a lot better.