Cheap food dehydrators you can find at Wal-Mart or the like for $20-30. In the winter I fill the 4 or 5 trays with about 9-10lbs of brass total. I only run them for about 30-45 mins, maybe an hour for bottleneck, then lay them on an old blanket for a day. That way any extra moisture trapped in primer pocket will dry completely. In the summer I use big drying screens I made, similar to a screen door, that I put on saw horses and let the sun and wind today them.