Why gluten-free bread behaves differently

Baking artisan bread without gluten is not a case of swapping one flour for another. Gluten gives wheat dough its stretch, its ability to trap gas, and that lovely open crumb. Remove it and you lose the scaffolding. The result is often a dense brick or a loaf that crumbles the moment you cut it. The good news is that you can rebuild structure using a thoughtful blend of wholegrain flours, starches, and binders. Once you understand what each ingredient does, you can create gluten-free loaves that rise proudly and slice cleanly.

The foundation: wholegrain flours and starches

Think of your blend as two teams. Wholegrain flours bring flavour, colour, and nutrition, but they are heavy and absorb plenty of water. Starches bring lightness, elasticity, and a tender crumb. A good starting ratio for sandwich bread is 60–70% wholegrain flour to 30–40% starch. For a free-form artisan loaf, move closer to 50/50 so the dough holds its shape without becoming gummy.

• Brown rice flour – neutral and reliable, though slightly gritty. It makes up the backbone of many blends.
• Sorghum flour – mild and wheat-like, excellent for rise and a soft crumb.
• Millet flour – light and sweet, best used at 10–20% of the blend.
• Buckwheat flour – bold and earthy. Keep it to 20% or less unless you want that flavour to dominate.
• Teff flour – malty and dense, so use sparingly, perhaps 10%.
• Tapioca starch – chewy and elastic. It helps bind and gives that appealing pull.
• Potato starch – light and soft. Not potato flour, which is much heavier.
• Cornflour – smooth and tenderising. A little goes a long way.

Too much starch above 40% and your loaf turns gluey. Too little and it crumbles. Balance is everything.

Binders: the scaffolding of gluten-free bread

Binders replace some of gluten’s work. Psyllium husk is the star. Whole husks or powder absorb water and form a gel that mimics gluten’s elasticity. Use 2–4% of your total flour weight, so about 10–20g per 500g blend. Xanthan gum adds stretch and helps trap gas. For sandwich bread, 0.5–1.5% works well; for sourdough, use less. Guar gum is a decent alternative but can be slimy.

Ground flaxseed and chia seeds also gel, adding moisture and a nutty note. Eggs bind and lift, though they make a loaf less vegan-friendly. You can combine binders for the best result: a little psyllium for structure, a little xanthan for elasticity. For a 500g flour blend, try 12g psyllium husk plus 4g xanthan gum. That simple pairing transforms a crumbly mix into a dough you can shape.

Building your own blend: a practical starting point

Here is a reliable base for a wholegrain gluten-free loaf. Weigh everything in grams for consistency.

• 200g brown rice flour
• 100g sorghum flour
• 50g millet flour
• 100g tapioca starch
• 50g potato starch

That gives you 500g of blend. To it, add 12g psyllium husk, 4g xanthan gum, and 10g fine sea salt. For the liquid, start with 85–95% hydration – that is 425–475g water per 500g blend. Wholegrains are thirsty, so do not fear a wet, batter-like dough. Add a tablespoon of olive oil or a spoonful of yoghurt for softness. Mix, then rest for 20–30 minutes before shaping. This rest lets the flours hydrate and the binders swell, which prevents a gritty crumb.

Techniques for a better rise and clean slice

Gluten-free dough does not knead like wheat. Mix until smooth, using a stand mixer or a sturdy spatula. For yeast breads, use instant yeast or a gluten-free sourdough starter. Prove in a warm place until the dough has risen by about half, not doubled – over-proving leads to collapse. Bake in a lined tin for sandwich loaves, or free-form on parchment for a rustic crust. Steam matters: place a tray of water in the oven for the first 15 minutes. Bake until the internal temperature reaches 96–99°C. Then comes the hardest part: cool completely, for at least two hours, before slicing. A serrated knife and a gentle sawing motion give you clean slices without crumbling.

Wholegrain cookery: flavour without heaviness

Wholegrains can make gluten-free bread taste extraordinary, but they need a little care. Toasting the flours in a dry pan for a few minutes deepens their flavour. Soaking coarse grains, or adding cooked quinoa, millet, or oats, increases moisture and nutritional value. Replace up to 10% of your dry blend with cooked grains, and add extra water to compensate. A gluten-free sourdough starter, fed with brown rice and sorghum, improves digestibility and gives a gentle tang. Seeds – sunflower, pumpkin, flax – fold in beautifully and add texture. With practice, you will find your favourite blend. Start simple, keep notes, and adjust hydration and binders one step at a time. Your reward is a wholegrain loaf that rises well, slices neatly, and tastes every bit as good as it looks.