[burns375]

I usually pull left over heavy dark pollen the next year in late winter early spring when I prepare nucs/splits. As far as this years pollen you'de be surprised in dearth how much a full size colony can munch thru. Although if they swarm hard or collapse there could be a lot of surplus. In my experience any dark pollen left over is not used and just blocks expansion and will lead to swarming in spring. But this years pollen is a vital resource especially if conditions dry up in summer/fall.

I just cut out foundation or pop out plastic and put a new piece in.

You could also sell the bee breed, I never have.