Separating husks from uneaten seeds question

[solo_birdlover]

I use a small rechargeable vacuum to do that. I hold the seed cup with one hand, shake it a few times so the husks will rise to the top, then I hold the vacuum and get it only close enough so the empty seeds are sucked into the vacuum (because they're lighter obviously). I repeat that a few times with each cup. I hardly ever lose uneaten seeds.