Translations:Adventist Youth Honors Answer Book/Outdoor Industries/Beekeeping/20/en
From Pathfinder Wiki
Broodcomb becomes dark over time, because of the cocoons embedded in the cells and the tracking of many feet, called travel stain by beekeepers when seen on frames of comb honey. Honeycomb in the "supers" that are not allowed to be used for brood stays light colored.
