Detail from “Bakery” watercolor on paper by Boris M. Kustodiev, 1920. From Rus’: Russkie tipy V. M. Kustodieva (1923).

Remarks: Bread increases by a third during baking. For example, if bread takes 9 lbs of flour, then after baking and cooling the bread will weigh 12 lbs; if it is made from 12 lbs of flour, the bread will weigh 16 lbs.