
Colorado cannabis labs produce consistently unreliable results for THC potency, with identical samples returning values that vary by up to 38%, or more than twice what state law allows.
That’s one of the “staggeringly bad” findings in a small-scale study conducted last year by Ripple, a Boulder, Colorado-based manufacturer, results of which were released Monday.
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The study underscores the necessity for regulators to establish stricter methods for commercial cannabis labs, similar to the standards applied to labs that test botanical products in the alcohol industry, according to Ripple.
“These results show a rot much deeper than interlab consistency,” Justin Singer, Ripple’s CEO, said in an email.
“The same labs applying the same methods to the same samples across time are also failing to
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