Semolina: what it is, what it is for, and the loaf it makes

At a glance

Sources disagree. Mill datasheets disagree with each other by a wide margin. Molini di Voghera declares W 250 and 14.0% protein for its Selezione Pugliese; other sheets for the same kind of product give W 205 and 11.8%. Nobody is wrong: Italian law only requires 10.5% protein for semola, and everything above that is each mill's commercial choice.

What it is called in each country

What it is for

Thick-crusted, yellow-crumbed bread: Altamura, pane pugliese, Sicilian sesame loaves. Focaccia barese, the one with potato in the dough. Fresh and dried pasta, which is the grain's original job.

And dusting the bench and the peel, where it beats ordinary flour outright: the granules roll instead of turning to paste, and they add crunch to the base of a pizza.

Blended into common wheat flour, 20% to 30% already changes the colour of the crumb and brings an almond note that white flour does not have.

How to substitute it

Swapping semolina for ordinary flour, or the other way round, changes three things: colour, flavour and water. Take the semolina out and you lose the yellow crumb and the almond note, and the dough drinks less: pull about 5 points of hydration and shorten the rest, or it goes slack. Going the other way, putting semolina where the recipe asked for plain flour needs an autolyse and more time, and even then the crumb tightens. For everyday structured bread, bread flour is still the easier call; semolina earns its place through colour, crust and flavour, not convenience. Blended at 20% to 30% it gives the character without charging the full price.

When not to use it

Puff pastry, brioche and laminated doughs generally. Durum gluten is tenacious but not very extensible: the Voghera sheet gives P/L 1.3 and a gluten index around 50. In practice the dough fights back instead of stretching, and laminating butter into it becomes a wrestling match.

Cake, no. The structure comes out heavy and the crumb sandy.

How to use it

It drinks slowly. Laboratory absorption sits near 61%, but that is the standard test, not the hydration of a recipe: a semolina loaf works well between 70% and 75%. What really changes is time. Give it 30 to 40 minutes of autolyse before the salt and yeast, or you will decide the dough is too slack, correct it with more flour and end up with a brick.

The yellow comes from carotenoids in the grain, and the yellow index is a selling parameter: the Voghera sheet asks for 24 minimum. Long mixing oxidises and destroys part of it. If your semolina bread comes out pale inside, you kneaded it too long.

And check the grind before you buy. The coarse kind, good for couscous and for dusting, will not hydrate properly in a loaf.

How to choose one when buying

Look for two words on the bag: rimacinata (or fine, extra-fine) and durum. The coarse grade from the couscous aisle will not do for bread, because it never fully hydrates and leaves the crumb gritty. If the datasheet lists a yellow index, 24 or above is a good sign for colour. Protein and W vary from mill to mill, so do not trust the number on the front: the same rimacinata shows up at W 205 and at W 250 depending on the brand. In the United States it is sold as durum flour or semolina flour; take the fine one, not the coarse pasta-machine grade.

The story

Durum and common wheat are different species. Common wheat is Triticum aestivum, hexaploid. Durum is Triticum turgidum subsp. durum, tetraploid. This is not a coarser grind of the same grain: it is another plant, and the difference starts before the mill.

The durum kernel is glassy and so hard it shatters into angular fragments instead of powdering. That is where the Italian legal definition of semola comes from: a granular product with sharp edges. That hardness is what lets dried pasta hold its shape in boiling water, and it is why Italian dry pasta is made from durum by law.

Rimacinata is that same semolina put back through the rolls until it is nearly as fine as flour. And here is the part almost nobody mentions: rimacinata is not a separate legal type. Italy's DPR 187/2001 lists semola, semolato, semola integrale and farina di grano duro, then handles regrinding in a separate clause, permitted specifically for breadmaking. The bag of rimacinata you buy is ordinary semolina that went back to the mill so it could become bread.

Its emblematic loaf is Pane di Altamura, from Puglia, recognised by the European Union on 18 July 2003 as the first bread in Europe to hold a Protected Designation of Origin.

Frequently asked

Is semolina flour the same as semolina?

In most shops semolina means the coarse granular product and semolina flour the finely reground one. For bread you want the fine one, sold as rimacinata in Italy or as durum flour in the United States. The coarse grade will leave the crumb gritty.

Can I use semolina instead of bread flour?

Not one for one. As a full swap it wants more water and much more resting time, and even then the crumb stays tighter. Start by replacing 30% and work up from there.

Is it good for pizza?

In the dough, blended: 20% to 30% gives colour and crunch without making the base tough. On the peel it is the best thing there is, because the granules roll and do not scorch as fast as fine flour.

Why is my semolina bread pale instead of yellow?

Usually over-mixing. The colour comes from carotenoid pigments, and long, oxygenating mixing bleaches them out. Mix less, rest more.