I started trapping pollen due to customers who kept asking me for local pollen. The trapped pollen has some trash in it, a few SHB larvae here and there, and I would like some way to clean it. Kelley's sells a pollen cleaner. The two beekeepers who own one say it doesn't work very well. I'm thinking about a screen of some sort but not sure what size or if there is a better way.
I tried searching the archives, even with the advanced search, but seemed to find all the posts that didn't apply to cleaning pollen.