Systems and methods are described for processing a plant material, such as Cannabis and/or hemp. An example method includes: providing a slurry of plant material; providing an inert gas; adding the slurry and the inert gas to a tank; applying heat and pressure to the slurry inside the tank to generate a processed plant material; removing the processed plant material from the tank; and drying the processed plant material in a dryer to produce a dried product comprising cannabidiol (CBD).