|Craig MacKenzie, CP, RTP(c)|
Expensive does not always mean better. Ed Patterson, who works at Velocity Labs, Orlando, Florida, was cleaning the dishes one night and noticed that a frying pan and a vacuum-pulling platen have the same shape. Most people either make their own platens out of wood or buy the expensive aluminum ones. The cast-iron frying pan has longer sloped sides and is extremely durable. Plus, if the threads ever get cross-threaded, it is less expensive to replace a three dollar, 1″ flange.