The story
plain (“regular”) + flour. The U.S. standard of identity comes from 21CFR137.105.
Etymology from Wiktionary, CC BY-SA 4.0.
plain flour
Today it means: A wheat flour with a medium gluten content, suitable for general use. Full definition →
Today it means: A wheat flour with a medium gluten content, suitable for general use. Full definition →
plain (“regular”) + flour. The U.S. standard of identity comes from 21CFR137.105.
Etymology from Wiktionary, CC BY-SA 4.0.