Diastatic Malt Powder substitute

Best substitute

Nothing at All, Plus a Longer Ferment

omit entirely; extend bulk fermentation by 30 to 60 minutes or cold-retard overnight

Best for pizza dough

Different taste

The most reliable answer for almost every home bread recipe.

Other diastatic malt powder substitutes

Ranked, with the exact amount to use

2Active Sourdough Starter or Levain
Different taste
Use about 20g of active starter for every 500g flour, with the flour and water adjusted accordingly
A living culture that brings its own amylase and protease activity.
What changes
Best for
pizza dough, artisan loaves, bagels, long-fermented doughs
A mature starter contains real enzyme activity plus organic acids, so it improves extensibility and crust colour in a similar direction to diastatic malt. Reduce the recipe's flour and water by the amount of starter you add to keep the hydration honest. It also adds a noticeable sour tang, which is welcome in a rustic loaf and out of place in a sweet challah or a soft milk bread.
3Malted Barley Flour from a Health-Food Shop or Homebrew Supplier
Close match
Use the same amount with diastatic malt powder, at 0.25 to 0.5 percent of flour weight
The same product under a different name, if the label says diastatic or high-diastatic.
What changes
Best for
bagels, pizza dough, bread, anywhere the recipe asked for it
The label is everything here. Diastatic, high-diastatic or lintner-rated means live enzymes and a true 1:1 swap. If it does not say so, assume it has been roasted and the enzymes are dead, which makes it a flavouring only. Homebrew shops sell whole malted barley grains cheaply, and you can grind a small amount in a spice grinder to make your own, which is the cheapest route by far.
4Home-Sprouted Wheat or Barley, Dried and Ground
Close match
Use the same amount with diastatic malt powder
Making the ingredient yourself, which is genuinely straightforward.
What changes
Best for
bread, bagels, keen bakers, regions where malt powder is not sold
Soak wheat or barley berries overnight, drain, and rinse twice a day for two or three days until the sprouts are about as long as the grain. Dry them below 50C, in a dehydrator or the coolest oven you have, until snappingly brittle, then grind fine. Anything hotter kills the enzymes and you have made a flavouring instead. Homemade malt varies in strength, so start at half the recipe amount.
5Non-Diastatic Malt Powder, Malt Syrup or Barley Malt Extract
Different texture
1 to 2 percent of flour weight, for flavour and colour only
Roasted malt with the enzymes destroyed, useful but not equivalent.
What changes
Best for
bagels, pretzels, bagel boiling water, malty crust flavour
This is the distinction that matters most on this page. Non-diastatic malt is just a sweetener with a rich, malty, slightly bitter flavour. It will darken and flavour your crust convincingly, so a bagel made with it tastes right, but it does nothing to the dough's starch, so you get no extra extensibility, no faster fermentation and no boost to rise. For bagels, use it in the boiling water as well as the dough, about a tablespoon per litre.
6Honey or Sugar
Taste and texture differ
1 to 2 percent of flour weight
The pantry option for browning, with no enzyme benefit at all.
What changes
Best for
pizza dough, sandwich bread, quick fixes
A teaspoon of honey or sugar in a 500g flour dough gives the yeast something immediate to eat and helps the crust colour, which covers the two most visible effects of malt. What it cannot do is loosen the gluten or improve extensibility, so a pizza dough that was fighting you before will still fight you. Honey adds its own floral note; sugar adds nothing but sweetness.

What is Diastatic Malt Powder?

Diastatic Malt Powder is Diastatic malt powder, also sold as malted barley flour, diastatic malt or bread malt, is sprouted barley dried at low temperature and milled so its amylase enzymes stay alive, and those live enzymes break a little of the flour's starch into sugar during fermentation.

Cooking tips

The single most important thing to understand is what job diastatic malt is doing, because getting this wrong ruins dough. It is not a sweetener and not a flavouring, it is an enzyme. Its live amylase converts a little of the flour's starch into simple sugars, which gives yeast more to eat, makes the dough more extensible and easier to stretch, and leaves residual sugar behind to brown the crust. Anything you substitute either supplies enzymes or it does not, and if it does not, you are substituting for the flavour only.
Use very, very little. Diastatic malt is dosed at roughly 0.25 to 0.5 percent of the flour weight, which is around half a teaspoon per 500g of flour. Too much is a real failure mode, not a theoretical one: excess amylase digests too much starch and you get a slack, sticky, unmanageable dough and a gummy, dark, dense loaf. When in doubt, use less or none.
Check your flour before you hunt for malt at all. Most commercial bread flour in the United States and much of the UK is already malted at the mill, and the recipe's malt is topping up something the flour may already have. Unbleached, unmalted, organic and freshly milled flours are the ones that genuinely benefit.
For bagels, split the job in two. The chew and rise come from the dough, so a longer cold ferment covers the missing diastatic malt, while the classic bagel flavour and shine come mostly from malt in the boiling water. A tablespoon of barley malt syrup, honey or even brown sugar per litre of boiling water gets you a recognisably bagel-flavoured, glossy crust with no diastatic malt anywhere.
Heat kills the enzymes, so store diastatic malt powder sealed in a cool dark cupboard or the fridge and expect it to fade over a year or two. If an old tub is no longer doing anything, it has quietly become non-diastatic malt powder, which is still perfectly good for flavour.
Never scale diastatic malt up when you scale a recipe up carelessly. Because the dose is a fraction of a percent, a tablespoon-based measurement error in a large batch is enough to turn the whole dough to soup. Weigh it if you can.

Frequently asked questions

Can I just leave the diastatic malt powder out?

Yes, in nearly every home recipe, and this is the answer most bakers need to hear. Bread, pizza and bagels all work without it. The loaf will brown a little less, taste slightly less malty and sweet and may rise a touch less enthusiastically, and the dough will be marginally stiffer to stretch. Ferment for longer, or retard the dough overnight in the fridge, and the difference becomes small enough that most people would not notice at the table.

What is the difference between diastatic and non-diastatic malt powder?

Enzymes. Both start as sprouted barley, but diastatic malt is dried gently so the amylase survives, and non-diastatic malt is roasted, which kills the enzymes and develops a deeper, sweeter, malt-shop flavour. Diastatic malt changes how the dough behaves. Non-diastatic malt only flavours and colours it. They are not interchangeable in either direction: using non-diastatic malt where the recipe wanted diastatic gives you no dough improvement, and using diastatic malt as a sweetener in something like a malted milkshake or a frosting is a waste and can turn a starch-thickened mixture thin.

Can I use malt syrup, malt extract or malted milk powder instead?

For flavour and crust colour, yes, at about 1 to 2 percent of flour weight. For enzyme activity, no. Barley malt syrup and malt extract are almost always non-diastatic, and malted milk powder is malt plus milk solids and sugar, so it adds dairy and sweetness you may not want. All three make a good bagel taste like a bagel; none of them make the dough easier to stretch.

What happens if I use too much diastatic malt powder?

The dough turns slack, sticky and hard to shape, it may collapse during proofing, and the baked crumb comes out dense and gummy with an over-dark, sometimes almost burnt-looking crust. This is the most common malt mistake and it is worse than using none. Stay at half a teaspoon per 500g of flour or less, and if you have made your own from sprouted grain, start at half that because homemade malt strength varies.

Is diastatic malt powder gluten-free?

No. It is made from barley or sometimes wheat, both of which contain gluten, so it is not suitable for coeliac baking. There is no gluten-free equivalent that does the same enzymatic job, and in gluten-free baking the problems malt solves largely do not apply. If you need crust colour and a malty flavour in a gluten-free loaf, a little molasses, honey or coconut sugar does that safely.

Related substitutes

More baking substitutes

Diastatic Malt Powder substitute

Other diastatic malt powder substitutes

2Active Sourdough Starter or Levain

3Malted Barley Flour from a Health-Food Shop or Homebrew Supplier

4Home-Sprouted Wheat or Barley, Dried and Ground

5Non-Diastatic Malt Powder, Malt Syrup or Barley Malt Extract

6Honey or Sugar