The failure rate for cannabis products tested in California is over 15 Percent as of November 2, 2018. The majority of testing failures relate to label claims (65%), and followed by pesticides (22%) and microbial impurities (8%). The cannabis products that account for a largest portion of the testing failures include edibles, tinctures, topicals, etc. at 28%, inhalable products account for 17% and flower (10%).