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Whole Wheat Flour: Types, Stone Ground vs Organic, and Storage

Pile of flour with wheat ears and a wooden scoop on a wooden table

By Black Wheat Team | Last updated: November 2026

Whole wheat flour is flour made by grinding the entire wheat kernel, so it keeps the bran, germ and endosperm together. That’s why it’s darker, nuttier and higher in fiber than all-purpose flour. In US stores you’ll see several kinds, including regular, white whole wheat, stone ground, organic and whole wheat pastry flour, and they don’t all bake the same way. This guide explains what each label means, how to pick a good bag, and how to keep it fresh. If you’re curious how coloured wheat fits in, see black wheat vs regular wheat.

Key Takeaways

• Whole wheat flour contains all three parts of the kernel, so it has much more fiber than all-purpose flour.
• Stone ground and organic describe how the flour is milled and grown, not a different grain.
• It spoils faster than white flour because of oils in the germ. Store it airtight and cool, or freeze it.
• All whole wheat flour contains gluten.

What is whole wheat flour?

It’s wheat ground with all three parts of the kernel: the fiber-rich bran, the oily, nutrient-dense germ and the starchy endosperm. In the US, the FDA standard says these parts must stay in their natural proportions. It’s also called wholemeal flour in the UK and atta in South Asia.

Close-up of whole wheat kernels

A wheat kernel is mostly endosperm, which is what white flour is made from. The bran is the outer layer, and the germ is the small part that would sprout into a new plant. Strip away bran and germ, and you lose most of the fiber, along with much of the vitamin E, B vitamins and minerals.

Under the US standard of identity for whole wheat flour, the bran, germ and endosperm don’t have to be milled together, but they do have to end up in the same proportions as the original grain. Many large mills separate the parts and recombine them, which is perfectly legal.

How does whole wheat flour compare with all-purpose flour?

It has roughly three to four times the fiber of all-purpose flour, a little more protein and more minerals, while calories are similar. It absorbs more water, gives denser bakes and tastes nuttier. All-purpose flour is refined, milder, lighter and lasts longer on the shelf.

Per 100 g (approx.) Whole wheat flour All-purpose flour
Energy About 340 kcal About 364 kcal
Protein About 13 g About 10 g
Dietary fiber About 10–11 g About 3 g
Parts of kernel Bran, germ, endosperm Endosperm only
Shelf life at room temp Shorter (weeks to a few months) Longer (many months)
Baking result Denser, darker, nuttier Lighter, softer, milder

These figures are approximate and vary by wheat and mill. You can check exact values on USDA FoodData Central. Remember that much US all-purpose flour is enriched, meaning some B vitamins and iron are added back after milling. Fiber isn’t one of them.

What is stone ground whole wheat flour?

Stone ground whole wheat flour is milled between two heavy stones that crush the whole kernel in one pass. The result usually has a coarser texture, more visible bran flecks and a fuller, sweeter flavor than roller-milled flour. Many small mills and bakers prefer it, though it tends to spoil a little faster.

Old millstone grinding flour in a rustic mill

Most commercial flour is roller milled. Steel rollers break the kernel in stages and sift the parts apart. It’s fast, consistent and great for white flour, but for whole wheat the bran and germ are often added back at the end.

Stone milling keeps everything together from the start. The germ oils get spread through the flour, which adds flavour but also means it can go stale sooner. You’ll often hear that stones run cooler than rollers. In practice, the heat depends on the mill and how fast it runs, so treat that claim as “sometimes true” rather than a guarantee.

Stone ground whole wheat flour can be coarse or fine. Coarse grinds make rustic loaves and hearty pancakes. Fine grinds are easier for flatbreads and everyday baking.

Is organic whole wheat flour better?

Organic whole wheat flour comes from wheat grown under certified organic rules, which restrict most synthetic pesticides and fertilizers. Its nutrition is broadly similar to conventional whole wheat flour. People choose it mainly for farming practices and personal preference, not because it’s proven to be much more nutritious.

In the US, look for the USDA Organic seal, which means the product meets the National Organic Program standards. “Natural” on a flour bag has no comparable legal meaning.

Expect to pay more. In 2026, organic or stone ground whole wheat flour often costs somewhere around $1.50–$4 per pound, compared with roughly $0.80–$2 for standard supermarket bags. Prices vary a lot by brand, bag size, store and region.

What types of whole wheat flour can you buy?

The main types are regular whole wheat (hard red wheat), white whole wheat (hard white wheat), whole wheat pastry flour (soft wheat), stone ground, organic, and atta for flatbreads. Each is still whole grain, but protein level, colour and grind change how it bakes.

Type Made from Taste and colour Best for
Regular whole wheat Hard red wheat Darker, strong Bread, rolls, hearty bakes
White whole wheat Hard white wheat Lighter, milder Swapping into everyday recipes
Whole wheat pastry flour Soft wheat Mild, fine, lower protein Muffins, cookies, pancakes
Stone ground Any wheat, stone milled Fuller flavor, often coarser Rustic bread, pancakes
Atta Hard wheat, chakki milled Very fine, soft Roti, chapati, paratha

White whole wheat flour surprises a lot of people. It’s still 100% whole grain. It just comes from a pale-coloured wheat variety with milder bran, so kids and picky eaters often don’t notice it.

Atta is a special case. It’s milled very finely, traditionally in a chakki, which gives soft, pliable dough for flatbreads. If you make roti, it’s worth trying our black wheat flour roti recipe.

Want to know what the bran and germ each bring on their own? Read our wheat germ vs wheat bran comparison.

How do you choose a good whole wheat flour?

Check that the only ingredient is whole wheat or whole grain wheat flour. Look for a recent milling or best-by date, choose the type that suits what you bake, and buy a bag size you’ll use within a few months. Avoid bags that smell sharp, bitter or musty.

Watch the wording at the grocery store. “Wheat flour” on its own usually means refined white flour. “100% whole wheat” or “whole grain wheat” is what you want.

Buying from a store with high turnover helps, because the flour hasn’t sat on a warm shelf for months. If you only bake now and then, a smaller bag is better value than a big one that goes stale.

Interested in coloured whole grains too? Black wheat flour is usually whole grain as well, but some “black” flours are tinted or mixed. Our guide on how to identify real black wheat explains how to check.

Looking for an easy first recipe? Our whole wheat pancake recipe uses 100% whole wheat flour.

How do you substitute whole wheat flour for all-purpose flour?

Start by replacing 25–50% of the all-purpose flour with whole wheat. Add about 1–2 extra tablespoons of liquid per cup of whole wheat used and rest the batter or dough for 15–30 minutes. For cakes and cookies, whole wheat pastry flour or white whole wheat gives a softer result.

Going straight to 100% whole grain usually gives heavier bread and drier cookies. Step up gradually as you learn how your flour behaves.

The rest is the step most people skip. Bran soaks up water slowly, so batter that looks right at first can thicken as it sits. Giving it a short rest makes the texture more even and less gritty.

Weighing flour helps too. A cup of it often weighs around 113–128 g, depending on how you scoop it.

Ready to bake? Try our homemade whole wheat tortilla recipe or see how it compares in black wheat vs whole wheat bread.

How should you store whole wheat flour?

Keep it in an airtight container in a cool, dark place and use it within about 1–3 months. In the fridge it keeps roughly 6 months, and in the freezer up to about a year. If it smells bitter, sour or like old oil, it has gone rancid.

Glass storage jars with clamp lids on a kitchen shelf

The germ contains natural oils that oxidise over time, which is why it doesn’t last as long as white flour. Heat and humidity speed this up, so a warm summer kitchen shortens its life.

The same rules apply to black wheat flour. For more detail, read how to store black wheat flour.

Curious what happens when the gluten is washed out of flour? Our wheat starch guide explains how it is made, its uses and the gluten question.

Is whole wheat flour healthy?

It’s a nutritious whole grain. It provides fiber, B vitamins, minerals such as magnesium and iron, and some protein. The Dietary Guidelines for Americans recommend making at least half your grains whole. It still contains carbohydrates and gluten, so portions matter.

It isn’t suitable for people with celiac disease or a wheat allergy. We explain gluten in wheat in is black wheat gluten-free? If you’re managing diabetes, weight or blood pressure, are pregnant, or are feeding young children, please consult your doctor or a registered dietitian.

Frequently Asked Questions

Is whole wheat flour the same as whole grain flour?

Whole wheat flour is one kind of whole grain flour. “Whole grain” can also mean flour from oats, barley, rye or other grains, as long as the whole kernel is used.

Is whole wheat flour the same as atta?

Atta is a type of whole wheat flour, but it’s milled very finely, traditionally in a chakki. That gives softer dough for roti, while supermarket whole wheat flour is often coarser.

Why does my whole wheat bread taste bitter?

Bitterness usually comes from stale flour or from the tannins in red wheat bran. Use fresh flour, or try white whole wheat for a milder flavor.

Can I use whole wheat flour for cakes?

Yes. Whole wheat pastry flour works best. With regular whole wheat flour, replace only part of the all-purpose flour and rest the batter before baking.

Is stone ground flour more nutritious?

Stone ground and roller milled whole wheat flours contain the same parts of the kernel, so their nutrition is broadly similar. The main differences are texture, flavor and shelf life.

Is whole wheat flour good for people with diabetes?

It has more fiber than white flour, but it’s still high in carbohydrates. Please consult your doctor or a registered dietitian about portions and choices that suit you.

Put your flour to work with our whole wheat pizza dough recipe.

Final Thoughts

A good bag starts with a clear label, a recent date and the right type for what you bake. Stone ground and organic options add flavor and choice, while white whole wheat makes switching easy. Store it cool and use it fresh. If you want to explore a coloured whole grain next, read what is black wheat or try our black wheat bread recipe.

Have a question about choosing or storing flour? Get in touch with us.

This article is for general information only and is not medical or nutritional advice. Whole wheat flour contains gluten.