You can make anything you want out of them - edibles, tinctures, tea, etc.
Everything is usable except the roots, but the amount of THC in the various parts of the plant varies greatly.
Credit to @blackthumbbetty for providing this a long time ago:
Approximate THC per gram of dried material in a 15% THC sample
Sugar Trim 35mg
You can make tea with them yes. Just steep in boiling water. Or…you could also compost em if you using soil. My fan leaves I usually juice and make dry ice hash with my sugars. All you gotta do is take your dried leaves add to bubble hash bags drop in dry ice and shake. From there I add it to Ls and make butter. A lb of dry is is more than enough for my grows typically.
I took a half pound of sugar leaf and made bubble hash.It was surprisingly good,but only got about 4 grams our of it,so I compost or trash my fan leaves.The sugar leaf makes great tinctures and oil,and also great bubble hash . I started making my own capes doing alcohol extraction and adding terpenes .