Installations for automatically drying of cannabis

The installation consists of one or more drying rooms with the complete equipment and control to automatically dry the desired amount of cannabis.

The installation is scalable; start with a small number of rooms with possible expansion to 100 rooms (or more). 

Overview of an installation with 2x 10 drying rooms

The installation can be placed in any existing or newbuild building. No special requirements are needed.

With a corridor in the middle of about 15ft/5 mtr, it’s easy for a forklift to load and unload the drying rooms with the tray-drying-unit.

At the back a narrow corridor. Through this corridor there is access to every individual drying room for cleaning and inspection.

The installations consist of different drying rooms; separated from each other, which makes individual drying per room possible. Per day one or more drying rooms can be filled and optionally per variety.

2-4 Tray-drying units can be placed per drying room. Each (standard) unit has 30m² of tray surface for 15 kg of dried buds.

The standard tray-drying units have a size of approximately 1220x1650mm (48’x66 ‘) and a height of 850mm (35’).

Each tray-drying unit has a capacity for 128 trays (16 layers of 8 trays). The tray drying unit can also be tailor made  or your existing trays.




The trays are slid into the tray-drying unit on the sides, after which the side gaps are closed. At the bottom there are 2 openings for the forks of the forklift.

Buds are collected in these special trays. The standard size is  400x600mm (16’x24’) A grill in the bottom prevent the buds from being flattened.

Top view of standard drying tray

Underside drying tray

The trays are placed in a “tray drying unit”; 128 trays with 30m² of drying surface per unit; 15 kg of dried buds per tray-drying unit. These special “tray drying units” ensure optimum logistics, practical processing and perfect drying.

We can also use your existing trays in this drying installation; the tray-drying units will then be tailor made and the drying room to measure.

Placing a tray-drying-unit with trays in a drying room.

After the trays have been filled with the buds and slid into the tray-drying-unit, the unit is brought to the drying area with a forklift. There, the unit is slid into the drying room.

This naturally gives a big saving on labour costs. It also prevents the risk of mixing with other species.

Separate access via a roller shutter at the front per drying room. As a result, the drying process of the other drying rooms is not affected when (un)loading one of the drying rooms.

The Tray units are slid separately into a drying room; 2, 3 or 4 on top of each other. Drying chambers ensure that drying can start every day. In general, the drying process takes place in a cycle of 7 days. This can be done faster (or slower) with a larger (smaller) dehumidification capacity per room.

The moisture released is drained off by condensed drying.


We offer installations that can be used at GMP certified companies. Eurofins provides guidance on how to comply. A test setup is made here.

We also use UV-C light, which affects the DNA of the bacterial and fungal spores; In addition, special Food Save Coated (FSC) sandwich panels.

When the ventilation pallets are placed in the drying unit (B), the process of drying can commence. A high-pressure fan (C) sucks the process air via the pallet (A)  from top to bottom through the boxes (J). The amount of air will be adjusted automatically per phase; lots of air when just harvested and less air when the product is already drier.

The moisture content of the air from each pallet will be measured. By doing this, the moisture content of the product can be determined. In this way, the cannabis will be dried individually in each pallet.

At the back side, the air will flow upwards (K) to the air of the drying unit. In the condensation dryer, the air will be dried by condensation and thereafter brought to the desired temperature (F); [65-70° F (18-21° C) and 50-55%].

At the frontside (G), this dried process air will be sucked into the boxes again and can absorb moisture from the cannabis.

After drying, the curing can start (automatically) in the same installation. Always at the right air conditions.

The process air flows via the back side of the installation to the air dryer (K).

A part of the process air will be sucked through the condensation unit (D). There, the process air will be dried by letting the moisture (from the air (L)) condense.

This dried air blends with the rest of the process air (E). The blended process air (M) will be warmed up (F) at the front and flows via the front side (G) back to the ventilation pallets with boxes (A).

This warmed and dried air [65-70° F (18-21° C) and 50-55%] can absorb moisture again, from the cannabis (G).

  • Drying the cannabis to a perfect product
  • Very efficient internal transport
  • After harvest no extra handling needed
  • Storage of high volume dry product in a small place
  • The cannabis remains on the pallet until processing
  • High quality and no losses
  • Less labor costs
  • No risk for contamination or infections
  • Higher production by optimal use of the building.
  • Better overview of different strains

Overall: You’ll make more money because of higher quality, less losses and more production with lower labor cost.