Scald a granite-ware coffee-pot. Wash egg, break, and beat slightly. Dilute with one-half the cold water, add crushed shell, and mix with coffee. Turn into coffee-pot, pour on boiling water, and stir thoroughly. Place on front of range, and boil three minutes. If not boiled, coffee is cloudy; if boiled too long, too much tannic acid is developed. The spout of pot should be covered or stuffed with soft paper to prevent escape of fragrant aroma. Stir and pour some in
Egg shells may be saved and used for clearing coffee. Three egg shells are sufficient to effect clearing where
Coffee made with an egg has a rich flavor which egg alone can give. Where strict economy is necessary, if great care is taken, egg may be omitted. Coffee so made should be served from range, as much motion causes it to become roiled.
Tin is an undesirable material for a coffee-pot, as tannic acid acts on such metal and is apt to form a poisonous compound.
When coffee and scalded milk are served in equal proportions, it is called Café au lait. Coffee served with whipped cream is called Vienna Coffee.