Fat Guy, on Dec 16 2002, 11:35 AM, said:
First, what I still don't understand is why having the coals in a firebox makes any difference in terms of the heating properties of the oven. Isn't it still going to cook with absorbed and re-radiated heat? Second, isn't it correct that the flavor-transfer from wood is considered undesirable in traditional pizza baking? Isn't that why the traditional Italian wood of choice is the very clean-burning white oak? Third, doesn't coal burn hotter than wood? It would seem this would make coal the better fuel for pizza-baking. Fourth, do they ever use coal-fired ovens for baking in Europe? Finally, I don't question your observation that the crust from pizza can absorb ambient flavors quickly, but are you certain these flavors are coming from the wood? I wonder if what people perceive as smoke flavor isn't just coming from the slightly burnt flour and cornmeal that forms on the underside of the crust.
I don't think the firebox versus the fuel-in-oven will make much of a difference in the heating characteristics, as such. Equally, you can get very high temperatures with electricity, which is generally cheaper and certainly cleaner and lower maintenance.
I'm not sure whose standards would decree that flavour transfer is undesirable for pizza. To believe this, you would have to believe that pizza "cuit au feu de bois" is simply a romantic idea, something that affects ambience rather than flavour. That's possible, but it seems unlikely to me.
Isn't there a Neapolitan pizza society that publishes standards for pizza quality, perhaps even on the web? It would be interesting to see what they have to say about this.
On whether the smoke comes from the wood or from burnt flour, all I can say is that the electric pizza oven I have in France (which easily goes up to 500 degrees C, in practice we tend to do pizzas at around 400 C) turns out a delicious product, but it doesn't have the same character as the best pizza from wood ovens, including some that I have used -- hence eliminating the possible confounding variable of the cook.
You certainly get an element of smoke and wood flavours when wood-fired ovens are used to cook meats. Next I am in France I will try to find out what kind of wood the pizza restaurants tend to use. You would certainly want to avoid resinous softwoods (pines, etc). But even well-cured white oak will leave some flavour elements.
I have never seen a coal-burning pizza oven in Europe. But then, there are thousands of pizza ovens in Europe that I haven't seen, so this doesn't tell us very much.
This post has been edited by JD (London): 16 December 2002 - 06:31 AM