We first separate out the first pull when washing to have a clean 90u pull. The hash is then collected in the 90u bag which consists of 90u-149u with a 150u on top. That tray is then freeze dried and then prepped with two 25u micron bags. Once freeze dried, the hash is pressed out using heat & pressure, and collected into a jar. Finally, the 90u Rosin is cured & whipped to perfection.