i've made weed tea, works great.
Here's how i did it.
Put 2 cups milk in a pot. Add stems (use at least a handful of stems). Bring milk to a boil. Once it starts a rolling bubble, reduce the heat so that it maintains a slow steady bubble, and stir CONSTANTLY. Milk will boil over very easily, stir stir stir, for about 25 min. Remove from heat, strain the stems, and enjoy. Now, as water evaporates out of the milk, it will become thick, so you may need to add water along the way to keep a tea like consistency. It will take in between 1-3 hours to kick in fully, so dont get pissed off when you dont feel blazed immediately. You'll just be sitting around a lot later and be like, shit, I'm stoned. Then it will last about 6 hours.