[thedoc (OP)]

Daniel Weyandt asked the Naked Scientists:
   
Please help us resolve a bet.

When recently making Pizza a friend insisted his black baking tray would transmit heat faster than the aluminium coloured one.

While everyone knows, that black sheet metal warms up more quickly in the sun, the issue of light absorption does not apply to the baking oven?

Let's assume, they are both made of aluminium and of equal thickness, same height etc.

Thanks
Daniel

What do you think?

[RD]

If blackened by carbon deposits, that black-layer would act as a thermal-insulator, slowing the conduction of heat to the pizza base, when compared to a carbon-free aluminium tray.