How to Expand Ivory Soap: 8 Steps (with Pictures) - wikiHow
Oct 29, 2020·Microwave the soap on HIGH for 1 ½ - 2 minutes. Place the plate of soap in the microwave and set the time for 2 minutes. Watch the bar of soap as it begins to expand and erupt into beautiful puffy clouds. Make sure an adult is present during this step and stop the microwave once the soap stops expanding.