Originally Posted by foodguy
it affects the cooking time some, but not dramatically. in this case, maybe 5 minutes at most?
keep checking though.
is that even true?
here is my understanding of how the oven works: it has a thermostat. when the temp falls below the preset level, the oven "lights the fire," so to speak. I presume that most ovens are two-state; that is, they are either on (fire is heating the oven) or off (fire is not heating the oven, temp is theoretically held even, though of course you are losing heat to the food and also to the outside environment). There isn't a "halfway on" or "hold temp" state.
Larger things take longer because the heat has to "soak in" to the middle to fully cook the center, but multiples of equal size, while requiring more heat, will just mean that the oven is "on" for more of the same time period?
Anyways, not trying to start a nit-picky e-fight - just trying to learn more. Obviously you are the expert, not me... but I like to understand not only what happens but why it happens - so that I can expand beyond just having a point fact, rather understanding the concept more deeply.
Edit: as Fang66 points out, what's more important than the quantity is how much that quantity resembles a single larger mass rather than individual ones.