OAR 333-007-0420: Standards for Testing Water Activity and Moisture Content

(1) Usable marijuana must be tested by a laboratory for: (a) Water activity; and (b) Moisture content. (2) Kief manufactured before March 1, 2023, must be tested by a laboratory for water activity unless the marijuana or usable marijuana used to produce the kief has already passed testing for water activity prior to producing the kief in accordance with OAR 333-007-0320(6). (3) If a sample has a water activity rate of more than 0.65 Aw the sample fails. (4) If a sample has a moisture content of more than 15 percent the sample fails.