Every legal product ships with a certificate of analysis, but most of them go unread. That’s a shame, because the CoA is the closest thing this industry has to ground truth.
Start with the contaminant panels — microbials, heavy metals, pesticides — before you ever look at potency. A clean screen is non-negotiable; a high THC number on a dirty sample means nothing.
Then read the terpene profile next to the cannabinoid panel. The ratio between them tells you more about how the flower will actually feel than THC percentage ever will.