Trichome Institute developed a program called Trichome Assurance Grading, or TAG, as a means to assess the quality of cannabis flower.
“When you go to the grocery store and buy food, it’s been quality-checked; when you buy medicine, it’s been quality-checked. We are a multibillion-dollar industry that has no way to measure and quantify what our units should cost,” Montrose says in a discussion with Cannabist editor-in-chief Ricardo Baca on The Cannabist Show.
TAG grades aspects of flower that are scientifically measurable — such as structure, trichomes, ripeness, pungency, contaminants and mold — utilizing sight, smell and taste. Two double-blind tests are conducted by testers who have received Level 3 Interpening certification — the institute’s equivalent of sommelier training.