Re: Anyone use a food dehydrator like this to dry filament?
I think you want the air flowing up. My dehydrator is a bit unusual in that it has a large "bucket" cover. I can stack two full size 2.2 G rolls in at once, along with a bunch of desiccant packets.
After 24 hours, I put the filament roll into a 1 or 2-gallon ZipLoc brand Double-Zipper bag (depending on the size of the spool) with a couple desiccant packets and a moisture indicating strip. Then, all the filament goes into a big plastic container with latch lid and more desiccant packets.