5 lbs. lukewarm melted fat
1 can (1 lb.) lye
1 qt. cold water
3 tsp. Borax
1 tsp. salt
2 tbsp. sugar
1/2 c. cold water
1/4 c. ammonia

Fats that are not fit for food may be made into soap. Melt fat and strain thorough cheesecloth. Dissolve the lye in cold water and let stand until cool, then add the fat slowly, stirring constantly. Mix the other ingredients together and add to the first mixture. Stir the whole until thick and light colored. Pour into a pan lined with cloth. Mark into pieces of desired size before the soap becomes hard. When hard, break pieces apart and pile in such a way that soap may dry out well.