Cold Soap
The grease for this should be tried out. Do this gradually as scraps accumulate; pour the grease, a little at a time, into a kettle kept for the purpose. Tallow and lard scraps, after the clear fat has been pressed out, are put in water and boiled, then strained through a colander, the grease left to rise, removed in a cake from the surface of the water, boiled up and poured hot into the soap-grease kettle. Working in this manner makes a solid mass of pure grease that never molds. Twenty-five pounds of grease will make a barrel of soap. Fill the barrel half full of lye strong enough to bear up an egg. Heat the grease boiling hot and pour into the lye. Stir often, and when it begins to thicken, fill up with weak lye. If made in cold weather, heat the lye as well as the grease. It never fails to thicken, and is much whiter and cleaner than boiled soap. In warm weather the soap may be made by putting the cold grease directly into the cold lye and leaving in the sun; stir often.