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Posers and Puzzles

Posers and Puzzles

  1. 12 Dec '13 12:13
    Someone recently asked me what is most energy efficient way to turn bread into toast, well I know it's not the microwave, it can't be convection or even conduction - so is the answer really radiated heat and what type of radiated heat? One question led to many others - any ideas?
  2. Subscriber Ponderable
    chemist
    12 Dec '13 12:24
    Originally posted by Campaigner
    Someone recently asked me what is most energy efficient way to turn bread into toast, well I know it's not the microwave, it can't be convection or even conduction - so is the answer really radiated heat and what type of radiated heat? One question led to many others - any ideas?
    The problem here is that toast is only toast when crispy on the outside. We need the heat just to take effect on the surface, so radiation is a good source.

    Probably the horizontal toaster is more efficient than the vertical one, if you consider the heat losses .