Barley Flour: How to Bake With It and What to Expect

Long before wheat took over the British baking table, the Highlands ran on barley. Barley flour made the daily bannock, thickened the broth, and in the far north still does, milled from bere, an ancient six-row barley grown in Orkney for a thousand years. It is sweet, nutty, and faintly earthy, and while it will never give you a tall, airy loaf, it makes some of the most satisfying flatbreads, scones, and quick breads you will ever pull from an oven.

If you have only ever baked with wheat, barley flour asks you to adjust your expectations rather than your skills. It is low in gluten, so it behaves differently, and understanding that is the whole game.

What is barley flour, and what does it taste like?

Barley flour is simply barley grain ground fine. Most flour on the shelf comes from pearled barley, which gives a pale, mild flour. Wholemeal barley flour, milled from the whole grain, is darker, nuttier, and richer in fibre. The flavour sits somewhere between oats and wheat: gently sweet, a little malty, with none of the bitterness some whole grains carry. That malty note is no accident. Barley is the grain of malt, and you can taste the kinship.

Is barley flour gluten-free?

No, and this is the most important thing to know before you bake with it. Barley contains gluten, along with a related protein called hordein, so it is not safe for anyone with coeliac disease or a wheat or gluten intolerance. If that is you, reach for a naturally gluten-free flour instead, and our gluten-free bread flour guide covers the blends that actually work. Barley flour does, however, contain far less gluten than wheat, which is exactly why it cannot raise a loaf on its own.

How do you bake with barley flour?

Because barley is low in gluten, it cannot build the stretchy network that lets wheat bread rise tall. The trick is to treat it as a partner, not a replacement:

• For yeast bread: replace up to a quarter of the wheat flour with barley flour. More than that and the loaf turns dense.
• For flatbreads, bannocks, and scones: barley can take the lead, since these do not depend on a big rise.
• For pancakes, muffins, and quick breads: swap in up to half, for a tender, moist crumb.

A good wholemeal barley flour is worth seeking out for the fuller flavour. If you cannot find it, you can mill your own from pearl barley.

What does barley flour do for you nutritionally?

This is where barley earns its keep. It is one of the richest food sources of beta-glucan, a soluble fibre shown to lower LDL cholesterol, which is why both the FDA and UK authorities allow a heart-health claim on barley foods. Per USDA FoodData Central, barley flour also carries useful fibre, manganese, and selenium. It is, in the old Scots sense, a grain that does you good, the same one that made brose and bannock the fuel of crofting life.

Why is my barley bread so dense?

Nine times out of ten, too much barley flour. Bakers used to wheat assume they can swap one for one, then wonder why the loaf sits like a stone. Barley simply has not the gluten to trap gas and hold a rise. Keep it to a quarter of the flour in any yeast bread, let the wheat do the lifting, and you get the malty flavour without the brick. For an all-barley result, lean into bannocks and griddle breads, which were never meant to rise in the first place.

More from the barley shelf

If you are taken with this honest old grain, there is more to explore. Learn how to cook barley as a whole grain, settle the question of whether barley is gluten-free for good, or simmer a pot of beef and barley soup. Bakers who love a hearty crumb should also see our rye flour notes and the wider ancient grain bread guide.