Short answer
In US ingredient terminology, both corn flour and cornmeal are ground corn products. Corn flour is typically finer and powdery; cornmeal is coarser and more granular. Milling and labeling vary, so texture is more useful than a rigid boundary. In the UK, ‘cornflour’ commonly names what US shoppers call cornstarch. 1 2
Corn flour and cornmeal are both milled dried corn products, differing mainly in how finely they are ground.
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At a glance
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| Question | corn flour | cornmeal |
|---|---|---|
| Texture | Fine and powdery | Coarse and gritty |
| Common US Use | Baking, batters, thickening | Cornbread, polenta, coatings |
What each thing is
Corn flour. In US cooking, corn flour is finely ground dried corn. The milling process can use whole grain or remove some kernel parts, so fineness alone does not establish whole-grain content. 1 2
Cornmeal. In US cooking, cornmeal is more coarsely ground dried corn. It may be whole-grain or degerminated; its distinguishing feature from corn flour is primarily particle size. 1 2
Key differences
The primary distinction between corn flour and cornmeal in the US is particle size: corn flour is finely milled to a soft powder, while cornmeal remains coarse and granular, affecting both texture and culinary application. 1 2
How to tell them apart
You can usually tell them apart by touch and appearance: corn flour feels smooth and looks like wheat flour, while cornmeal is visibly gritty. However, some products may be labeled ambiguously, so checking texture is more reliable than relying solely on packaging. 2
Where they overlap
Both are ground from dried corn and may be yellow or white depending on the corn. Either may be whole-grain or degerminated, so the name alone does not establish how much bran and germ remain. 1 2
Edge cases
Some finely ground cornmeal may be labeled as ‘corn flour’ and vice versa, especially in smaller mills or specialty shops. Additionally, UK ‘cornflour’ refers to cornstarch, not US corn flour, which can cause confusion in international recipes. 2
Why the distinction exists
The practical distinction follows milling and particle size: finer grinding produces flour-like corn particles, while coarser meal keeps more noticeable grit. Mills can also process the germ and bran differently, so neither term alone guarantees a particular whole-grain composition. Recipes use the texture that fits the intended result. 1 2
Common misconceptions
A common misconception is that corn flour and cornmeal are interchangeable. In reality, their textures lead to different results in recipes, and using one in place of the other can significantly alter the final dish. 2
Examples
A US shopper finds both corn flour and cornmeal in the baking aisle. For a cake-like cornbread, they choose corn flour for its fine texture. For classic, crumbly cornbread or breading, they select cornmeal for its grit. 2
Sources
Sources checked October 3, 2026.
- New York Academy of Sciences — Processing maize flour and corn meal food products. Dry milling and particle size of maize products.
- The Loopy Whisk — Cornstarch versus corn flour. US and UK naming difference.