Well... to maximize the potency of the tea, the weed must be decarboxilated first. It is needed to convert all the THCA (which does not get you high) to THC (which gets you high). Freshly harvested, homegrown, low-grade, and not properly cured weed contains a lot of THCA, and decarboxilating it ensures a complete use of its stoning potential.

To do it, just wrap tightly the weed with tinfoil, and put it into the oven at 325F (or into a sandwich maker) for some 15 minutes.
After it, the weed becomes dry, crunchy, and with the maximum amount of THC in it.

BTW, this process also can be used to decarboxilate weed before smoking it. The difference of the high is noticeable... sometimes VERY noticeable... :stoned::abduct: