Dissolve eighteen pounds of potash in three pailsful of water: then add to it twenty-five pounds of grease, and boil it over a slow fire for a couple of hours. Turn it into a barrel, and fill it up with water.
Heat twenty-six pounds of strained grease. When melted, mix it with four pailsful of lye, made of twenty pounds of white potash. Let the whole stand in the sun, stirring it frequently. In the course of a week, fill the barrel with weak lye. This method of making soap is much easier than to make a lye of your ashes, while it is as cheap, if you sell your ashes to the soap-boiler.
Dissolve twenty weight of white, potash in three pailsful of water. Heat twenty pounds of strained grease, then mix it with the dissolved potash, and boil them together till the whole becomes a thick jelly, which is ascertained by taking a little of it out to get cold. Take it from the fire, stir in cold water till it grows thin, then put to each pailful of soap a pint of blown salt - stir it in well. The succeeding day, separate it from the lye, and heat it over a slow fire. Let it boil a quarter of an hour, then take it from the fire. If you wish to have it a yellow color, put in a little palm oil, and turn it out into wooden vessels. When cold, separate it again from the lye, and cut it in bars - let them remain in the- sun several days to dry.
To make the celebrated Windsor soap, nothing more is necessary than to slice the best white soap as thin as possible, and melt it over a slow fire. Take it from the fire when melted, and when it is just lukewarm, add enough of the oil of caraway to scent it. If any other fragrant oil is liked better, it may be substituted. Turn it into moulds, and let it remain in a dry situation for five or six days. To make Castile soap, boil common soft soap in lamp oil three hours and a half.
Dissolve two pounds and a quarter of white potash in five quarts of water, then mix it with ten pounds of myrtle wax, or bayberry tallow. Boil the whole over a slow fire, till it turns to soap, then add a tea-cup of cold water - let it boil ten minutes longer - at the end of that time turn it into tin moulds, or pans, and let them remain a week or ten days to dry, then turn them out of the moulds. If you wish to have the soap scented, stir into it any essential oil that has an agreeable smell, just before you turn it into the moulds This kind of soap is excellent for shaving, and chapped hands - it is also good for eruptions on the face. It will be fit for use in the course of three or four weeks after it is made, but it is better for being kept ten or twelve months.