公开(公告)号：US11278635B2

公开(公告)日：2022-03-22

申请号：US16641885

申请日：2017-08-30

申请人： Enwave Corporation

发明人： Timothy D. Durance ,  Gary Sandberg ,  Jun Fu ,  Guopeng Zhang

IPC分类号： A61L2/12 ,  A61L2/00 ,  A61L2/26 ,  F26B5/04 ,  F26B17/04 ,  F26B21/10 ,  F26B25/00

摘要： A method and apparatus for pasteurizing and drying cannabis plant materials using a microwave-vacuum chamber. The pasteurizing and drying are carried out with no use of ionizing radiation and with rapid drying. Pasteurization is done at a temperature and for a time period that are sufficient to reduce microorganisms to an acceptably low level, while not significantly reducing the psychoactive compounds in the material. In the process, the pressure inside a vacuum chamber is reduced to a first pressure less than atmospheric. The material is maintained in the vacuum chamber at the first pressure at a pasteurizing temperature while irradiating the material with microwave radiation. The pressure is then reduced to a second pressure lower than the first pressure and the material is maintained in the vacuum chamber at the second pressure for a time period at a dehydrating temperature lower than the pasteurizing temperature while irradiating the material with microwave radiation. The pasteurizing and dehydrating steps can be done in the reverse order.

公开(公告)号：US20200246495A1

公开(公告)日：2020-08-06

申请号：US16641885

申请日：2017-08-30

申请人： Enwave Corporation

发明人： Timothy D Durance ,  Gary Sandberg ,  Jun Fu ,  Guopeng Zhang

IPC分类号： A61L2/00 ,  A61L2/12 ,  A61L2/26 ,  F26B5/04 ,  F26B17/04 ,  F26B21/10 ,  F26B25/00

摘要： A method and apparatus for pasteurizing and drying cannabis plant materials using a microwave-vacuum chamber. The pasteurizing and drying are carried out with no use of ionizing radiation and with rapid drying. Pasteurization is done at a temperature and for a time period that are sufficient to reduce microorganisms to an acceptably low level, while not significantly reducing the psychoactive compounds in the material. In the process, the pressure inside a vacuum chamber is reduced to a first pressure less than atmospheric. The material is maintained in the vacuum chamber at the first pressure at a pasteurizing temperature while irradiating the material with microwave radiation. The pressure is then reduced to a second pressure lower than the first pressure and the material is maintained in the vacuum chamber at the second pressure for a time period at a dehydrating temperature lower than the pasteurizing temperature while irradiating the material with microwave radiation. The pasteurizing and dehydrating steps can be done in the reverse order.