Table 6.

Concentrations and Total Amounts of THCA, THC, and Total THC Found in Ground Inflorescence Before and After Heating in a Volcano Vaporizer at Several Temperatures for Several Durations

Temperature (°C)	Time (sec)	%THC (w/w)	%THCA (w/w)	%Total THC (w/w)	Total THC (mg)	Degree of evaporation	N
Before heating		0.80±0.02	15.6±0.19	14.5±0.15	30.0±0.65	0%	6
180	20	9.77±0.92	7.57±0.78	16.4±0.37	27.2±0.12	−9%	3
	40	13.9±0.57	1.37±0.05	15.1±0.52	23.8±1.18	−21%	3
	60	13.1±0.19	0.97±0.10	14.0±0.17	23.3±0.29	−22%	3
	90	11.6±0.31	0.33±0.03	11.9±0.29	19.7±0.43	−34%	3
	120	10.3±0.21	0.50±0.24	10.7±0.32	16.8±0.47	−44%	3
	180	7.07±0.16	0.03±0.03	7.10±0.15	10.3±0.27	−66%	3
200	20	12.7±0.35	1.87±0.64	14.4±0.23	24.2±0.52	−19%	3
	40	11.2±0.35	0.27±0.07	11.4±0.41	18.3±0.84	−39%	3
Before heating		2.20±0.03	7.10±0.05	8.4±0.07	16.8±0.17	0.0%	3
220	20	6.52±0.05	0.13±0.11	6.6±0.08	11.0±0.34	−34.2%	3
	40	5.29±0.28	0.00±0.00	5.3±0.28	8.33±0.55	−50.3%	3

THCA, delta-9-tetrahydrocannabinolic acid.