44 : 90 : 07 : 06 . Generally safe concentration methods. The following methods of preparing concentrated cannabis are permissible if listed in the establishment’s operating procedures on file with the department:

1. (1) Mechanical concentration using:

   1. (a) Potable water and ice made from potable water;
   2. (b) Dry screening or sieving;
   3. (c) Cryogenic or subzero processing not involving a solvent; and
   4. (d) Pressure and temperature.

2. (2) Infusion of cannabis in food grade fats or synthetic food additives using:

   1. (a) Propylene glycol;
   2. (b) Glycerin; or
   3. (c) Butter, olive oil, or other typical cooking fats.

Source: 48 SDR 40, effective October 5, 2021.

General Authority: SDCL 34-20G-72 (5)(e)(h).

Law Implemented: SDCL 34-20G-72 (5).