Its color, when done, should be a fine bright brown; but by no means allow it to scorch. A cylindrical coffee-roaster that can be turned by a handle, and sets before the fire, is far preferable to a pot or a pan. Grind the coffee while warm.
If you intend to make half a dozen cups of coffee for drinking, measure six cups of water of the same size, and put the water into the coffee-pot. Set it on hot coals, and when the water boils, put in two or three chips of isinglass, or the white of an egg. Then throw in six large tea-spoonfuls of ground coffee. Stir it several times while boiling, and set it several times back from the fire to diminish the boiling gradually.
When it has boiled sufficiently, remove it entirely from the coals, pour in a cup of cold water, and then put it in a corner and let it settle for half an hour. Afterwards pour it off from the grounds into another pot (which must first be scalded), and set it close to the fire, but do not let it boil again.
If you intend to serve it up with hot cream, you must make the coffee stronger. While the coffee is clearing, boil your cream or milk, and pour some of it hot into each cup of coffee.