Ann Arbor lab makes sure dispensaries sell high-quality weed

ANN ARBOR, Mich. (AP) — As a lab technician in a white coat slides a marijuana sample underneath a microscope, a magnified image of dozens of sparkling crystals appears on a computer screen.

They’re trichomes, oozing with therapeutic cannabinoids, meaning it’s probably some pretty good bud.

But the tiny bugs found among the crystals are another story.

It’s just another afternoon at PSI Labs, a state-of-the-art facility in Ann Arbor where a team of 13 scientists and technicians use high-tech equipment to conduct quality-control testing for Michigan’s cannabis industry, The Ann Arbor News reported.

The lab offers full-service testing for retail dispensaries, processors, growers, patients and caregivers.

One of the first two medical cannabis safety-compliance facilities licensed by the state last July, it tests marijuana flower, concentrate and edibles for both potency and contaminants such as mold, mildew, fungus, pesticides and heavy metals.

The company was started by Lev Spivak-Birndorf and Ben Rosman, two

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