Extraction glassware is used in processes like botanical extraction, which involves the isolation of desired plant compounds by the application of a diffusing solvent. The solvent is then separated from the isolated compound, resulting in the desired extract.
Extraction glassware varies in form and function, as there are many applications for extraction methods. Soxhlet extractors are a common apparatus that allow for continuous extraction with a small amount of recycled solvent. This cheap and low-maintenance method makes soxhlet extraction popular in a wide variety of laboratories.