HOW TO – Build a solder paste fridge

Jeff Keyzer recently started doing surface-mounted soldering and wanted a way to keep the solder paste fresh (which needs to remain between 32-50°F). So he took an old Peltier cooler found in the trash and added a PID Controller. The results, a low-cost solder paste fridge for the shop.

PID Controlled Solder Paste Fridge


Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

View more articles by Gareth Branwyn