Bread is baked: (1) To kill ferment, (2) to make soluble the starch, (3) to drive off alcohol and carbon dioxide, and (4) to form brown crust of pleasant flavor. Bread should be baked in a hot oven. If the oven be too hot the crust will brown quickly before the heat has reached the centre, and prevent further rising; loaf should continue rising for first fifteen minutes of baking, when it should begin to brown, and continue browning for the next twenty minutes. The last fifteen minutes it should finish baking, when the heat may be reduced. When bread is done, it will not cling to sides of pan, and may be easily removed. Biscuits require more heat than loaf bread, should continue rising the first five minutes, and begin to brown in eight minutes. Experience is the best guide for testing temperature of oven. Various oven thermometers have been made, but none have proved practical. Bread may be brushed over with melted butter, three minutes before removal from oven, if a more tender crust is desired.