Central Milling Organic Type 00 review: the only US flour that publishes a W
By Marco Rivera · Updated
Verdict
The one American bag here with a published alveograph number: W280–300 at 11.5% protein. Strength from gluten quality rather than quantity, and built for two- and three-day cold ferments.
Who it's for
You know what you are doing with dough, you plan two or three days ahead, and you care that the wheat is organic and named. A specialist bag for a specialist buyer — and on paper the most interesting flour in this series.
Central Milling publishes the full spec, which almost no American mill does: 11.5% protein, 0.55% ash, W280–300, from named varieties of hard red winter wheat. The ash figure sits right on the Italian 00 ceiling of 0.55%, so the grind is the real article. The W is the surprise — an alveograph number from a US mill, and a strong one.
That combination — moderate protein, high W — is the thing to understand. The strength comes from the quality of the gluten network rather than the amount of protein, and the result is a dough that ferments for days without ever feeling tough.
What it's like to work with
Soft in the hand and much stronger than it feels, which takes getting used to if you have been reading protein percentage as a proxy for strength. At 65% it mixes up smooth and slightly slack, drinks like a 00 rather than a bread flour, and develops quickly. It takes 70–72% happily, and Central Milling's description of a supple crumb is fair there, but past about 70% it grips the bench and the peel — chasing that with handfuls of extra flour is how you end up with a sticky, over-floured mess. Work on semolina, and to go high, hold back 8% of the water and add it after the gluten has come together.
The ferment window is the reason to buy it. The shape of the schedule:
- 24 hours at 4 °C (39 °F) — good but underused; the flour has barely started to work.
- 48 hours — the sweet spot. Domed balls, clean opening, real fermented flavour.
- 72 hours — still holding a round, softer at the rim, better tasting again.
Push to four days and it goes the way everything goes — slack and spreading — but W280–300 means you get three comfortable days, which is more than any other American flour here can promise on paper. Keep instant yeast at 0.1–0.15%, and split the batch across two sealed tubs so it comes down to fridge temperature quickly instead of fermenting warm for hours.
In the oven
At 430–480 °C (800–900 °F) it does what a strong 00 should: a fast bake, an inflated rim, blistering that chars into spots, and a base that stays pliant. The crumb is noticeably finer than the same bake from a bread flour.
In a domestic oven the story is the familiar one, with one advantage. Central Milling lists the treatment as "None", so at 250 °C (480 °F) the dough starts with very little free sugar at the surface, and browning needs the surface well past 150 °C (300 °F) with sugar to react with — hence the standard pale, floppy base on a short ferment. The advantage is that this bag can comfortably do the 48 to 72 hours that generate that sugar enzymatically, and it does not go slack in the process.
So the recipe for a home oven is the same one that works for Caputo Chef's: ferment long, preheat a baking steel for 45–60 minutes — steel conducts around 18 times faster than cordierite — and finish 60–90 seconds under the grill.
Versus the obvious alternative
The honest comparison is Caputo Chef's, the blue bag, and it is close. Caputo publishes around 13% protein at W300–320; Central Milling publishes 11.5% at W280–300. Both are long-ferment 00 flours, and both want time and heat.
Caputo has slightly more stamina and, at 72 hours, a marginally firmer ball. Central Milling gives a softer, more delicate crumb at the same hydration, is organic, and comes from wheat the mill will name. Want the traditional Neapolitan reference point? Buy the Caputo. Want an organic flour with a spec sheet you can read? Buy this, and expect a very similar pizza.
How to use it
A 48-hour formula, in baker's percentages:
- Flour 100%
- Water 65%
- Salt 2.8%
- Instant dry yeast 0.12%
Mix, rest 20 minutes, knead smooth, bulk 1 hour at room temperature, ball at 250 g into individual containers, then 48 hours at 4 °C (39 °F) and 2 hours out before you stretch. Scale it with the Neapolitan calculator. For a home oven stay at 63–65%; save 70% for an oven that clears 400 °C.
This is also the best flour in the series for a sourdough build — a W280–300 network handles the extended, acidifying ferment a levain imposes, and the long window is where its money goes. Bake it as a classic margherita or a sourdough margherita, and if you want the theory behind the schedule, the cold fermentation guide has it.
Bottom line
The connoisseur's American bag, and the only one here that lets you compare a US flour with an Italian one on the same axis. At 11.5% protein and W280–300 it is proof that strength is about gluten quality rather than protein percentage, and it rewards a two- or three-day plan with a fine, supple crust. It is also mail order, more expensive, and pointless if you bake the dough you mixed this morning.
+ What we like
- ✓W280–300 published — the only US mill in this series that gives you a ferment number at all
- ✓Carries 48–72 hours cold at only 11.5% protein, which is the whole trick of it
- ✓0.55% ash and a true 00 fineness, so the crumb is supple rather than bready
- ✓Certified organic, from named hard red winter wheat varieties rather than a commodity blend
− Trade-offs
- ✗Specialist stock — mail order or a good baking shop, not a supermarket aisle
- ✗Central Milling also sells a Reinforced Type 00 at 13.8% and W340–360, and the retail bags are easy to confuse
- ✗Comfortable at 70% hydration, which means a dough that grips the bench if you are slow
Skip it if
You want a flour you can buy on the way home, or you bake same-day — this bag earns its price over two or three days in the fridge, and on an overnight schedule a supermarket 00 gives you most of the same pizza.
Put it into practice
Quick questions
How can an 11.5% flour ferment as long as a 13% one?
Because protein quantity and gluten quality are different things. W is measured on an alveograph — it is the work needed to blow a bubble of dough until it bursts, so it reads the strength and elasticity of the network the protein actually forms. Central Milling's wheat selection gets W280–300 out of 11.5% protein, which is close to Caputo's Pizzeria bag at 12.5%.
Which Central Milling Type 00 should I buy?
Check the number, not the bag. The Type 00 Normal is 11.5% protein at 0.55% ash and W280–300 — the flour reviewed here, and the right one for most pizza. The Type 00 Reinforced is 13.8% at 0.60% ash and W340–360, which is a very strong flour aimed at high hydration and multi-day ferments.
Is it worth the price over a supermarket 00?
Only if you use the strength. On an overnight dough, King Arthur's or Bob's 00 gets you close for less trouble. Over 48 to 72 hours in the fridge the difference becomes obvious — this ball still holds a dome where a lower-W flour has spread flat — and that long ferment is also what gives an unmalted flour the surface sugar it needs to brown.

Dial in the ratios
Get exact hydration and baker's percentages for this flour and your pizza style.