Awhile back someone posted a description of the chemistry behind what is happening when you FWH. It was in response to another post about something or another, I'm sure it related to first wort hopping (post subject-wise), but searching around I couldn't find it.
I remember thinking at the time, "That makes perfect sense. That's the only description of the actual chemistry behind the process that I've heard." But, of course, I didn't copy it or make a note of where it was.
It was probably a regular here who posted it and, if so, can you explain it again? And either way, anyone else have any thoughts on the subject?