@yewi @hajistar Don't know anything about the kanpō-yaku end of things, but bitter as a flavor is certainly something I've learned to enjoy since leaving the US, where sugar is king. We had heaps of na-no-hana at the table for six months out of every year before we were booted from our large garden plot by its owner, when care for my wife with ALS took priority over weeding. It's something I want to get started again in the remaining garden space. Delicious stuff.