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The most important thing is that pollen is valuable material.
It is far from waste.
Your hive is trong and it has filled brood combs with brood and it has situated pollen stores above excluder.
Combs are as well valuable and no reason to scrab them broken.
So next spring let the bees use those combs as brood combs. When the queen lays the cells, bees clean pollen away / eate it, . When the frame is full of brood, pollen is gone.
Then you may lift the combs over the excluder.
But you may avoid this when you give more space to brooding.
Two brood system is good. One and half is not flexible to use.
Bees tend to store pollen next to larvae. One brood frame consumes one frame of pollen.
You understand that the amount of pollen is huge and bees need stores for bad weeks.
One box brood needs one box pollen.
I use 3 brood system in summer the lovest brood is full of pollen (end of July) but when I look a month later, bees have reared winter bees with that store.
What I try to say is that pollen store is very essential to the life of bee colony.
It is somewhere. It depends to where you intall that excluder.
I can say that when my bees store pollen in lowest beebox, they do not store it into honey combs.
They are quite pollen free.
.one store place is next to wall combs in brood boxes. They tend to be full of pollen.