perhaps I'll try ice water prior to boiling next time to see what happens
It takes more than one watering. When I tried it I did it for about 2 weeks. It worked ok I guess. I used I cubes to bring it down to around 45-50 degrees. I did it with sister clones for the control and this is what it did....
It didn't have much effect on the color if the calyxes, the change was primarily I'm the leaves.
By the way, that bud was the smallest most underdeveloped bud on a 33inch plant. No defoliation for light and it was still not fluff or trash or "popcorn".