Katharine Blunt,
Food Guide for War Service at Home
“ The kind of flour made depends on how much and what parts of the kernel are used. Graham flour is manufactured by grinding practically all of the wheat-kernel—a 100-per-cent use of the grain, called 100-per-cent extraction. Some people still fail to realize that Graham flour and Graham bread are wheat, perhaps because of the different name and brown color. The so-called "whole-wheat" flour is often 95 per cent of the kernel only, but may be as little as 85 per cent, depending on the amount of the bran and germ removed in the making. ”
