Slowly sprinkle lye into the pre-frozen goat milk while stirring constantly to prevent scorching. Just add little bits of lye at a time, slow incorporation is crucial. Tip: I like to place my milk/lye solution bowl into another bowl of ice water to keep the solution from overheating. This helps keep your finished bar that really pretty cream color.
Melt oils together in a stainless-steel pot until fully liquid. Be careful! Oils heat up quickly. If you need to, you can place them in an ice bath to cool. I like mine around the 90°F mark. Tip: I will use a stick blender to help incorporate the harder oils quickly to help keep oils from overheating.
Combine the cooled lye solution and melted oils when oils are around 90–100°F. I like my lye mixture as cool as possible, and normally can keep it around the 65-70°F mark. Blend until the mixture reaches a light “trace” (similar to thin pudding).
Stir in fragrance and any colorants or additives you choose.
Pour into your mold. I like to pop it in the freezer overnight to keep it from over heating and cracking on top. I’ll take it out the next day, u mold whole frozen, and let it set on a cooling wrack for another 22 hours.
Let the soap sit undisturbed for 24–48 hours before unmolding.