3 Ways to Make Homemade Liquid Dish Soap - wikiHow
May 07, 2020·Heat the water and grated soap until the soap melts. Add 1 ½ cups (353 ml) of water and ¼ cup (9 ml) of tightly packed, grated castile bar soap to a medium saucepan, and place on the stove. Turn the heat to medium-high, and allow the mixture to heat until the soap completely dissolves, which should take 5 to 10 minutes.
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