Forty-eight hours is not a marketing number
Every few months a food writer asks me why our dough is fermented for 48 hours. Usually they want a quote about "tradition" or "old-world slowness." I say the real answer and they look disappointed, so here it is in long form.
Yeast does two things when you mix dough: it eats sugar and releases carbon dioxide (the puff) and it releases a constellation of volatile compounds that give bread its flavour — esters, alcohols, organic acids. Rushing fermentation gets you a lot of the first and almost none of the second. You end up with bread that is airy but empty.
If you want a crust that tastes of something — of caramelised malt, of lacto-fermentation, of that faintly sweet-acid thing the best Neapolitan pies have — you need the yeast to go slow. Long enough that the bacterial side of the culture also has time to work. Forty-eight hours in a 3 °C walk-in is what gets us there reliably. We've tried 24 (too flat), 36 (nearly good), 72 (gummy in the cornicione). Forty-eight is not a tradition. It's the number we settled on after six months of testing.
The hydration is 65%. The yeast load is 0.12% of flour weight, which is a joke of a dose. The flour is Caputo Nuvola Super — a high-protein 00 specifically spec'd for long-ferment pizza. We mix in the morning, bulk-ferment for four hours at room temperature, ball up, into the walk-in until Thursday evening (or Friday, or Saturday, depending on when the dough was made).
All of this is pointless if your oven can't back it up. Which brings us to the second story on this page. But first — if you've read this far, please consider that this dough cost us, in testing alone, about $9,000 worth of flour over 2020. It is still the thing I care about most here.