Pillar · Pizza Flour
Cold Fermentation & Long Leavening: A Practical Guide
Ask any pizzaiolo what separates a good pizza from a great one and most will not say the tomato, the cheese, or even the oven. They will say the dough. And if you press them on what makes the dough, they will say two words: time and temperature.
Cold fermentation is the slow road. It is the choice to let the dough do what it wants to do at the pace it wants to do it, which is to say, slowly and at 38°F. We believe that what flour gives you over 48 hours in a refrigerator, it can never give you in 4 hours on a warm counter. This is the practical guide to that belief.
What cold fermentation actually does
When yeast eats sugar at room temperature, it produces CO₂ fast and flavor compounds slowly. When yeast eats sugar at 38°F, it produces CO₂ slowly and flavor compounds at roughly the same rate. The math works in your favor. Time lets the enzymes in the flour break down starches into simpler sugars, which the yeast then converts into the aromatic acids and esters that make a Neapolitan crust taste like itself.
You are not just leavening. You are letting the flour become more of what it is.
The flour matters more than the schedule
This is where most home bakers go wrong. A 72-hour cold ferment on a weak supermarket flour produces a sad, sticky, over-fermented dough that tears when you try to stretch it. The flour has nothing left to give after 24 hours, and you have asked it for three days.
A long fermentation requires a flour with high W-strength. W is the rheological measure of gluten development potential. For 24 hours, you want W260–300. For 48–72 hours, you want W340–400. Our Le 5 Stagioni Pizza Napoletana sits at W310, ideal for 18–24 hour ferments. Our Manitoba sits at W390 and laughs at 72 hours.
A long fermentation requires a flour that can survive it.
A 48-hour schedule that works
This is the schedule we recommend for a standard Neapolitan-style dough using Le 5 Stagioni Pizza Napoletana. Quantities are for four 250g dough balls.
- Day 1, 6:00 PM - Combine 600g flour, 360g cold water (60% hydration), 18g salt, 0.5g instant yeast. Mix until shaggy, rest 20 minutes, then knead 8 minutes until smooth.
- Day 1, 6:30 PM - Bulk ferment at room temperature for 90 minutes.
- Day 1, 8:00 PM - Divide into 4 balls. Place in oiled containers. Into the fridge.
- Day 3, 4:00 PM - Remove from fridge. Let warm for 2 hours.
- Day 3, 6:00 PM - Shape, top, bake at the highest temperature your oven offers.
Reading your dough
A properly cold-fermented dough has three tells. It is silky, not sticky. It stretches without tearing into a thin window you can almost see through. And it smells slightly sweet and slightly tangy, like beer left out for an afternoon. If your dough fails any of these tests, the issue is almost always the flour, not the schedule.
Why we mill what we mill
Le 5 Stagioni is the #1 pizza flour brand in Italy. We did not get there by accident. Every Le 5 Stagioni Pizza Napoletana flour is AVPN-certified, which means it meets the rheological specifications set by the Associazione Verace Pizza Napoletana for traditional Neapolitan pizza. When we say this flour was made for long cold ferments, we mean it was tested, certified, and trusted by the people who invented the form.
Try it once with the schedule above. You will taste the difference.