World Flour Day

Globally, people grind many different grains and starchy plants into flour, including wheat, maize (corn), rice, rye, sorghum, millet, and cassava.

Wheat flour is dominant in much of Europe, the Middle East, North America, and parts of Asia because it contains gluten, which gives bread its structure.

Maize and cassava flours are staples in parts of Latin America and sub‑Saharan Africa, while rice flour is widely used across Asia.

The choice of grain reflects local climate, farming traditions, and cultural food preferences, which is why breads, flatbreads, noodles, and porridges vary so widely from one region to another.  

Flour made from cereals such as wheat, maize, and rice provides a large share of the world’s dietary energy and protein, especially in lower‑income regions where bread, noodles, and porridge are daily staples.

Because flour is so widely consumed, many countries use it as a vehicle for fortification with iron, folic acid, and other micronutrients to reduce anemia and birth defects.

Stable supplies of grain and flour, along with safe storage and milling, are therefore considered critical pillars of national and global food security strategies.  

Whole‑grain flour contains the bran, germ, and endosperm of the grain, so it typically has more fiber, vitamins, minerals, and phytonutrients than refined white flour, which is milled mainly from the starchy endosperm.

Refining improves shelf life and creates a lighter texture but removes much of the natural fiber and some micronutrients, which is why many countries require refined flour to be enriched or fortified.

Dietary guidelines in multiple regions recommend choosing whole‑grain products more often to support digestive health and reduce the risk of chronic disease.  

Traditional milling often used large stones to crush grain in a single pass, which produced relatively coarse flour that retained most of the bran and germ but had a shorter shelf life.

Modern roller mills separate grain into components, then recombine or further refine them, and they can control particle size, extraction rate, and consistency with great precision.

This allows large‑scale production of standardized flours for specific uses, but it also means nutrition depends on how much of the whole grain is retained or added back, and whether the flour is enriched or fortified.  

Flour prices and availability are closely tied to global grain markets, shipping routes, and trade policies because many countries import wheat or maize from major exporters.

Weather shocks, conflict in key producing regions, export restrictions, or spikes in fuel and transport costs can all raise the cost of grain and, in turn, flour.

International agencies track these trends because higher flour prices can quickly translate into higher bread prices, putting pressure on household food budgets and increasing food insecurity in vulnerable populations.  

Flour is a general term for finely ground grains or starchy foods, so it does not have to contain gluten.

Wheat, barley, and rye flours contain gluten‑forming proteins, which are useful for leavened breads but unsuitable for people with celiac disease or gluten intolerance.

Many traditional and commercial products use naturally gluten‑free flours instead, such as rice, maize, sorghum, millet, buckwheat, and cassava, often combined or processed in specific ways to mimic the textures usually provided by gluten.  

Many governments require large mills to add specific vitamins and minerals to wheat or maize flour because these staples are eaten daily by large segments of the population.

Common fortificants include iron, folic acid, zinc, and B vitamins such as niacin and thiamine, chosen to address common deficiencies and public‑health problems like anemia and neural tube defects.

Fortification is designed to be safe, affordable, and not noticeable in taste, and global health organizations regard it as one of the most cost‑effective nutrition interventions.