Does Your Weed Make the Grade?


The TAG program tests marijuana for things like fungus and mildew.

Starting today, you can purchase weed that’s been given a quality-assurance grade.

Created by theĀ Trichome Institute, a Colorado-based company dedicated to science, education and certification, the Trichome Assurance Grade (TAG) system analyzes potentially unhealthy, even dangerous, parts of marijuana for which the government doesn’t require testing.