Processes that aim to remove oil or resin from cannabis plant material to make a concentrate product. Extraction methods can use solvents such as butane, protane, or CO2 in a closed-loop system to produce BHO, PHO, or CO2 extracts, or can use heat and pressure to remove oils, as in making rosins or hash. Different extraction techniques can produce a variety of concentrates, including wax, shatter, oil, rosin, hash, and many more, and new extraction methods are created all the time.