Objective: how to make basic liquid soap

Which of the following solutions is more sound in terms of naive physics reasoning?

Pick your answer from: (i) Gather 8 to 10 ounces of soap. Grate the soap into large chunks of shaving soap. Add some glycerin if you're not using castile or handmade soap. Let the soap water sit off-heat for 12 to 24 hours. Whisk the soap the next morning, if needed. Stir in any desired essential oils or extracts.Pour the soap into soap dispensers; (ii) Gather 8 to 10 ounces of soap. Grate the soap into small flakes.Heat 1 gallonof water on a stove. Stir the soap into the water. Add some glycerin if you're not using castile or handmade soap. Let the soap water sit off-heat for 12 to 24 hours. Whisk the soap the next morning, if needed. Stir in any desired essential oils or extracts.Pour the soap into soap dispensers;
(ii)