How Is All Purpose Flour Made

How Is All Purpose Flour Madeの全体像を分かりやすくまとめてご紹介します。

All-purpose flour begins as wheat, specifically a blend of hard and soft wheat varieties. Why the blend? Hard wheat gives you strong gluten for chewy bread, while soft wheat makes tender cakes. By mixing them, millers create a flour that’s a jack-of-all-trades—hence the name “all-purpose.”

Farmers harvest the wheat when it’s golden and dry, usually in summer. The grains are then cleaned—think of a giant, industrial shower for wheat, removing dust, stones, and stray bits of straw. You don’t want chaff in your chocolate chip cookies, right? Exactly.

The magic of the mill: from berry to powder.

Once the wheat is clean, it’s time for the roller mill—a series of heavy steel rollers that crush and separate the grain. The wheat berry has three parts: the bran (the outer shell), the germ (the tiny embryo), and the endosperm (the starchy middle). For all-purpose flour, we mostly want the endosperm.

The rollers crack the grain, and sifters sort the pieces by size. This happens up to five or six times, grinding finer and finer. It’s like a giant, mechanical gold rush—except we’re mining for starch, not gold. The bran and germ are set aside for things like whole-wheat flour or animal feed.

After milling, the fine powder is bleached in some cases (using a small amount of chlorine or benzoyl peroxide) to make it whiter and improve its baking performance. Unbleached flour skips this step and ages naturally. Both work, but bleached flour gives you fluffier cakes; unbleached? A heartier texture.

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