I use a LEM dehydrator that I picked up cheap somewhere, Runnings maybe? https://www.lemproducts.com/product/...od-dehydrators
I like it because it has adjustable temp (I set mine at 140F) and a timer, so I can just "set it and forget it". It will hold a ton of brass. The only other thing I did to mine was to cut a square of heavy duty window screen material for each tray. Smaller brass like .380ACP and 9mm tended to want to stand up in the mesh of the trays which was a little obnoxious. It makes great jerky as well!