Abstract: A process for hydrating plant material in a hydration machine for use in a cigarette rolling machine includes the steps of measuring the moisture level of the plant material, introducing the plant material into the hydration machine, configuring hydration settings for the hydration machine to reach a target range of moisture between about 9.5% by weight and about 11.5% by weight at the exit of the hydration machine. And misting the plant material with one or more terpenes. The process further includes the steps of re-measuring the moisture level of the plant material at the exit of the hydration machine, and if the moisture level of the plant material at the exit of the hydration machine is within about 0.5% by weight of the target range, removing the plant material from the hydration machine. But if the moisture level of the plant material at the exit of the hydration machine is not within about 0.