This story was reprinted with permission from Crain’s Detroit and written by Dustin Walsh.
Testing the product
Just before lunch on weekdays, Reassure’s drivers return with pounds of marijuana. The lab currently tests approximately 30 samples per day with a capacity for about 80 per day, Polselli said.
Some growers need testing daily, others less so. Compliance testing costs about $400 to $500 per sample, Polselli said.
Reassure turns results around in three days or less.
The lab employs about 15 employees, mostly younger college graduates with chemistry degrees.
The state regulates contaminant testing for microbials, mycotoxins, moisture content, foreign materials, pesticides, residual solvents and heavy metals. Testing also measures potency levels of tetrahydrocannabinol (THC) and cannabidiol (CBD).
Reassure’s staff breaks up the marijuana nugs, visually inspects the samples to look for mold or rat excrement, and then grinds the product up for further scientific exploration. The product is then stored in a freezer at negative 80 degrees Celsius. The testing includes blasting apart ions with a plasma laser or melting the product in acid, all to determine whether the product is safe for consumption.
Polselli calls the process similar to the environmental testing done on the soil.