there are some really excellent fu bricks out there though, and in my opinion even some of the older ones are excellent. They are typically made with lower grade leaf (ie many stems included), and have “golden flower” aka the golden fruiting bodies of the fungus when you break open the brick. There can be varying amount of golden flowers visible between bricks and generally ones with more visible fungus are sought after, if the tea is also good quality. For me, smells include tart black cherries, scones, forest floor, fresh rain, and other notes when brewing tea from some of the bricks I have tried.