Abstract: Extraction devices and related methods are disclosed. Extraction devices disclosed may include a hopper, a piston, and an evaporation chamber. The hopper may be filled with a plant material and a solvent. The piston may be removably housed within the hopper so as to form a hermetic seal with the hopper. Once a solvent and extract mixture is formed within the hopper, a valve in the bottom of the hopper may be opened to allow the solvent and extract mixture to flow into the evaporation chamber via gravity. The remaining plant material may be compressed by the piston to remove any remaining solvent and extract mixture. The solvent may be evaporated in the evaporation chamber leaving a purified plant extract. Various types of plant materials may be used within the hopper. Various types of solvents may be used as well, including heptane and hexane.