What Is Fuller's Soap?
29 SEP 2017
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The term "fuller's soap" can be found in the Old Testament of the Bible and the Book of Mormon. Jesus' arrival on Earth is described as being “like a refiner’s fire, and like fuller’s soap.” Jesus, like the soap used by the launderers of antiquity to clean and whiten clothes, was coming to purify people and cleanse them of sin.
1 An Ancient Technique
According to Easton's Bible Dictionary, fulling is the ancient art of pressing or scouring cloth in a mill. Fullers also used their feet to stomp out garments. The online dictionary of the Church of Jesus Christ of Latter-day Saints explains the soap that fullers used was made from salts mixed with oil and one of two other ingredients: carbonate of soda or borax.