Prepare Workspace – Cover surfaces, gather tools, and wear gloves, long sleeves, and safety glasses. Wear a mask if sensitive to lye.
Make the Lye Solution First – Slowly add sodium hydroxide to distilled water in a heat-safe container. Let cool to room temperature. Always pour lye into water.
Measure and Melt Oils – Weigh oils and butters accurately. Place in a heat-safe container large enough to hold oils plus lye solution. Melt gently in a microwave or double boiler until fully liquid.
Check Temperatures – Oils and lye solution should be roughly the same temperature (room temperature or slightly warmer) before combining. Use an infrared thermometer for accuracy.
Add Optional Ingredients – Stir in powders, clays into oils while they are cooling. Mix gently to incorporate evenly.
Combine Oils and Lye – Slowly pour cooled lye solution into melted oils. Blend in short bursts with a stick or immersion blender until light trace is reached.
Pour into Molds – Carefully pour soap batter into molds. Tap lightly to release bubbles. Optionally sprinkle flower petals or herbs on top. Cover to retain heat during gel phase.
Gel Phase & Cure – Allow soap to sit 24–48 hours in molds. Unmold, cut, and cure at room temperature for 4–6 weeks to complete saponification and harden bars.
