As Cannabis concentrates continue to attract more users looking for raw cannabinoid exposure, new forms of extraction techniques and products are emerging on a regular basis. One of the latest innovations in this space is the Cannabis rosin technique which was first popularized on YouTube about 2 years ago and has been gaining popularity ever since. This technique is now being described as “the next big thing” in the cannabis concentrate world. This article will review the rosin technique, discuss its similarities to existing solventless extractions such as butane hash oil (BHO), and also compare it with one of the oldest types of cannabinoid concentrate, sap.