Cannabis conversion process

1. A method for preparing an ingestible cannabis composition, comprising:

a) dehydrating cannabis to provide a dehydrated cannabis;

b) heating the dehydrated cannabis under oxygen limited conditions for between about 20 minutes and about 40 minutes at a temperature of between about 130° C. and about 150° C. to form a roasted cannabis, wherein the heating of the dehydrated cannabis is performed under oxygen-limited conditions comprising one or more of: heating the dehydrated cannabis in a container sealed against oxygen; and heating the dehydrated cannabis under an inert atmosphere containing little or no oxygen;

c) mixing the roasted cannabis with an ingestible excipient in hot water to form a mixture of cannabis and ingestible excipient and separating the ingestible excipient and the roasted cannabis from the water to form the ingestible cannabis composition, wherein the ingestible excipient is selected from the group consisting of animal fat, vegetable oil, vegetable wax, polyethylene oxide, polycarboxylate, polyacrylamide, gelatin, polysaccharide, polyvinylpyrrolidone, crosscarmellose, starch, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and virgin coconut oil.

2. The method of claim 1 , wherein the dehydrated cannabis is heated to a temperature of between about 132° C. and about 150° C.

3. The method of claim 1 , wherein the dehydrated cannabis is heated to a temperature of between about 135° C. and about 145° C.

4. The method of claim 1 , wherein the dehydrated cannabis is heated to a temperature of between about 140° C. and about 145° C.

5. The method of claim 1 , wherein the cannabis is dehydrated by one or more of: oven drying; sun drying; forced-air drying; drum drying; freeze-drying; vacuum desiccation; chemical desiccation; and supercritical desiccation.

6. The method of claim 1 , wherein the dehydrated cannabis has a moisture content in weight percent of less than about 50%.

7. The method of claim 1 , wherein the dehydrated cannabis has a moisture content in weight percent of less than about 15%.

8. The method of claim 1 , wherein the dehydrated cannabis has a moisture content in weight percent of less than about 12%.

9. The method of claim 1 , wherein the dehydrated cannabis has a moisture content in weight percent of less than about 10%.

10. The method of claim 1 , wherein the heating of the dehydrated cannabis to form the roasted cannabis decarboxylates and isomerizes at least a portion of the delta-9 tetrahydrocannabinolic acid in the cannabis to form delta-11 tetrahydrocannabinol.

11. The method of claim 1 , wherein the roasted cannabis has a ratio of tetrahydrocannabinol to tetrahydrocannabinolic acid of at least about 3:1.

12. The method of claim 1 , wherein the roasted cannabis has a ratio of delta-11 tetrahydrocannabinol to delta-9 tetrahydrocannabinolic acid of at least about 3:1.

13. The method of claim 1 , wherein the roasted cannabis and the ingestible excipient in the hot water are mixed at a temperature of at least about 50° C.

14. The method of claim 1 , wherein the roasted cannabis and the ingestible excipient are mixed in the boiling water.

15. The method of claim 1 , further comprising:

cooling the hot water to form cooled water; and

separating the cooled water from the ingestible cannabis composition.

16. The method of claim 1 , wherein the roasted cannabis is mixed in a ratio to the ingestible excipient in a range of between about 1:10 and 10:1.

17. The method of claim 1 , further comprising at least two heating-cooling cycles, each heating-cooling cycle comprising:

heating the dehydrated cannabis to form the roasted cannabis; and

cooling the roasted cannabis.

18. The method of claim 17 , wherein the roasted cannabis is cooled in at least one said heating-cooling cycle to a temperature of less than about 40° C.

19. The method of claim 17 , wherein the roasted cannabis is cooled in at least one said heating-cooling cycle to a temperature of less than about 0° C.

20. The method of claim 17 , wherein accumulated moisture is removed from the roasted cannabis in at least one said heating-cooling cycle.