I have a tiny little calendar for the smallest seeds. It separates pretty well.
Proceeds that won't be blown away by a breath, I put them on a paper plate and go outside and shake the plate and gently blow at the same time. and most Chaffe blows away. It works great with cosmos, zinnia Rudbeckias.
If there's something that you feel has a lot of change and you're not sure there is many seeds just list that in the comment section when you list the seeds. The takea can then decide if they want to take the chance. If it was something that I really wanted I would take a shot!
