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Waste cooking oil produced by households and industries. The use of waste cooking oil be fuel, soap, floor cleaner, and candles have been developed. The use of waste cooking oil must be through purification step. A method of purification oil also have been developed, but the methods already there still managed to take optimal results. This research for development of previous studies, so results of this oil can be directly used to a different product with economic value. This research condistdoi:10.33087/jiubj.v22i2.2033 fatcat:7do7wak7ijca5htayexedmwj7y