@edgarblythe,
cbd is the THC junk that everybody;s taking for some reason right??.
I think the brown color is lignin so look up bleaching lignin (I dont recc Sodium BiSulphite cause I think you eat this **** no? Calci um Hypochlorite (swimming pool chlorine ) will bleach but I dont know if its safe to at without sveral dozen water washes. I bleach dyed leather for horse wear and biker vests, we dont eat reigns as far as I know so you need to consult bleaching for edibles.