Remove the soap base from its packaging and cut it into small, evenly sized pieces to promote quick and consistent melting. Because this white base contains titanium dioxide, Stephenson recommends cutting a vertical section from the top to the bottom of the block when using less than the full block. This helps maintain consistent colour, as some titanium dioxide may settle toward the bottom during manufacturing.
Place the pieces in a microwave-safe container or suitable melting vessel and gradually heat the base to approximately 75°C (149°F), stirring gently until completely melted and uniform. Avoid boiling or overheating, as excessive heat may cause the soap to darken. Once melted, add your chosen soap-safe colour, fragrance or other additives and stir gently until evenly dispersed. Keep total additives to no more than 3% of the soap base, including a maximum fragrance level of 1%.
Working quickly, pour the melted soap into clean, heat-safe moulds at approximately 68–72°C (154–162°F). Lightly spray the surface with rubbing alcohol to help remove surface bubbles, then allow the soap to cool and set completely before unmoulding. For easier release, leave the bars in a cool location for up to 24 hours. If creating a loaf, use a soap wire cutter for clean, even slices.
Crystal White No Sweat is specially formulated to reduce sweating and is suitable for creating unwrapped or “naked” soap bars, particularly in humid conditions. Store the unused base tightly sealed in a cool, dry location between 5–30°C. Although this base is designed to reduce sweating, results may vary depending on humidity, added ingredients and storage conditions. Test finished formulations for stability and performance before producing larger or commercial batches.
For more info on usage of the Stephenson Melt & Pour Soap, please refer to our Technical Documentation tab, the Stephenson Melt & Pour Soap Instruction Guide, or visit the Stephenson Personal Care Blog for additional project ideas.
