It was not difficult to convince a sizable audience that bread and milk were best when "sweet" and "pure." By 1830, medical opinion unanimously held that unsoured milk was indispensable for children and healthful for everyone else.
(49) Confucius Analects 14.32 (Waley trans.) See also Analects 1.1, "To remain unsoured even though one's merits are unrecognized by others, is that not after all what is expected of a gentleman?" Analects 1.16: "The Master said, (the good man) does not grieve that other people do not recognize his merits.