Mad Scientist Project #999
The Heated Dough Board
Here's a project I made last year. It's an electrically heated dough board - very useful for those like me who live in cold climates.
My kitchen temperature is only about 16C in the winter so I hit upon the idea of a heated dough board for working the dough and proofing.
After much searching for a suitable heater, I hit upon the idea of using a piece of heating film, normally used for underfloor heating. For safety reasons, it had to run on low voltage and luckily there is a 12 volt version for use in caravans. It's only 0.33mm thick and an available size of 500mm x 300mm was fine for my dough board and draws 3 amps at 12 volts.
The dough board is made of 3mm thick anodised aluminium for good heat conduction and light weight. I fixed the film to it with foil tape. I then made a backing board from a piece of 3mm birch ply and glued this to the rear of the board.
Power is suppled by a 12 volt power adaptor. There is no automatic temperature control, but the adaptor can be switched to supply different voltages. In practice I nearly always keep it near 12 volts.
I glued a thermistor to the underside of the board so I can see the temperature on a remote. LCD thermometer.
I was really pleased with how this project turned out and use the heated dough board for every bake.