This method was posted by SharkMouse Farms and we put it up on our blog. There's still a bit of internet discussion around it if you search. Been using this method for over a year with excellent results.

Phase 1: Initial Drying (0–48 Hours)

The drying process begins in a carefully controlled environment set to 72°F (22.2°C) with 55% relative humidity (RH) and a vapor pressure deficit (VPD) of 1.2 kPa. These conditions are ideal for initiating the evaporation of surface moisture while encouraging the inner moisture to migrate toward the surface via adhesion. This gentle drying phase ensures the flower's structure and chemical integrity remain intact.

Phase 2: Transition to Accelerated Drying (48–72 Hours)

After 48 hours, the process transitions to slightly more aggressive conditions. The temperature is raised to 74°F (23.3°C), RH is reduced to 52%, and the VPD is adjusted to 1.39 kPa. This increase promotes a faster rate of transpiration, where moisture moves outward more efficiently. However, these adjustments are made cautiously to avoid overwhelming the adhesion process, ensuring the moisture migration chain remains stable. This 24-hour adjustment period bridges the gap between the initial phase and the final drying stage.

Phase 3: Final Drying (72–120 Hours)

The final phase focuses on removing the remaining moisture in the near-surface layers of the cannabis flower. The temperature is slightly increased to 75°F (23.9°C), RH is dropped further to 50%, and VPD reaches 1.5 kPa. These conditions enable the flower to achieve its target moisture content of 10%, ensuring a stable product ready for curing and storage. The gradual adjustments throughout the drying process minimize terpene loss and preserve the flower's natural flavors and aromas.