Thank you @medmanmike. It appears I did get this wrong. I’ll have Teddy switch out.
This is how the material is presented in the patent application. I think I have it sorted out. Let me rework and have you all proofread for me.
Preferably, decarboxylation is carried out in a multi-step heating process in which the plant material is:
- i) heated to a first temperature for a first (relatively short) time period to evaporate off retained water and allow for uniform heating of the plant material; and
- ii) the temperature is increased to a second temperature for a second time period (typically longer than the first time period) until at least 95% conversion of the acid cannabinoids to their neutral form has occurred.
Drying - 105° C (221° F) for 15 minutes
Preferably the first step is conducted at a temperature in the range of 100° C. to 110° C. for 10–20 minutes. More preferably the first temperature is about
105° C. and the first time period is about
15 minutes.
CBD - 120° C (248° F) for 60 minutes
Or Preferred:
- 140° C (284° F) for 30 minutes
Large batch (> 4 oz) 145° C (293° F)
If the plant material is derived from
cannabis plants having a high CBD content (defined as >90% CBD as a percentage of total cannabinoid content), the second temperature is preferably in the range from 115° C. to 125° C., preferably about
120° C. and the second time period is in the range from 45 to 75 minutes, preferably about
60 minutes. More preferably the second temperature is in the range from 135° C. to 145° C., preferably
140° C. and the second time period is in the range from 15 to 45 minutes, preferably about
30 minutes. In another embodiment, most preferred for a mass of plant material greater than 4 kg, the second temperature is in the range from 140° C. to 150° C., preferably
145° C. and the second time period is in the range from
55–90 minutes. The latter conditions are preferred for processing amounts of, for example, 4–6 kg of starting plant material and the exact figures, particularly time, may vary slightly with increased mass.
THC - 120° C (248° F) for 60 minutes
Or Preferred:
- 110° C (230° F) for 110 minutes
Large batch (> 4 oz) 145° C (2
If the plant material is derived from
cannabis plants having a high THC content (defined as >90% THC as a percentage of total cannabinoid content), the second temperature is preferably in the range of 115° C. to 125° C., typically
120° C., and the second time period is preferably in the range of 45 minutes to 75 minutes, typically about
60 minutes. More preferably the second temperature is in
the range of 100° C. to 110° C., typically 105° C., and the second time period is in
the range of 60 to 120 minutes. In another embodiment, most preferred for a mass of plant material greater than 4 kg, the second temperature is in the range of 140° C. to 150° C., preferably
145° C., and the second time period is in the range of
45 to 55 minutes.
Most preferably the decarboxylation step is conducted at temperatures and for times which ensure at least 97% conversion of the acid cannabinoids to their neutral form, whilst ensuring thermal degradation of THC to CBN is less than 5%.