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Science laboratories that test marijuana in Oregon say the state’s recreational cannabis supply undergoes more testing, and is safer than any food product consumers buy.

A handful of labs just got their state accredited license this October.

Oregon has set the strictest standards in the industry.

“Residual solvents, potency, terpenes and pesticides over there,” Molly Lyons points out all the machines she uses to test hundreds of marijuana samples every day.

Her workplace, GreenHaus Analytical Labs in Southeast Portland, is among the first accredited to do it. They test several dozen samples from each marijuana harvest, and the oil and concentrates that it can be made into, for pesticides, mold and potency.

Once samples pass and some are cooked into edibles, they test the final food product as well — making sure each one doesn’t exceed the 15 milligram THC limit set by the state. If a sample fails two tests, it can’t be sold, and that money to grow it, is all lost. [Read more at KGW Portland]