Cannabinoids and terpenes are extracted by the ultrasonic method. Advantages of ultrasonic extraction Ultrasonic extraction has a number of advantages on the quality of the final product. For one thing, sonication is a much greener extraction method that doesn't rely on harsh solvents to extract the cannabinoid. Concerned with preserving the integrity and concentration of cannabinoids and terpenes, ultrasonic extraction does not rely on heat. Beware, extraction methods that rely on high heat can quickly destroy the sensitive cannabinoid content, which subsequently destroys much of the medicinal benefits of the whole plant.