I've been researching tinctures and happened to find a few things about teas as well. I've never made it but many people have. Don't let people tell you it can't be done. The key is something oily or fatty in the tea. Add milk, butter or whatever, but water alone will likely do nothing. The good stuff actually ends up on top of the water, like an oil slick. Drinking the rest of the tea will do nothing except make the stuff taste better. Also don't let people tell you not to waste good bud on tea. Like everything else you do with weed, crap in = crap out. Good stuff in = success. Stems have virtually none of the chemicals we desire.

Just my 2 cents, but the point is many people do it, and do it well. Don't let anyone tell you it can't be done, or it's a waste of time.