Melt and Pour – extra ingredients, not “natural”. Easiest and ready to use soap!
Cold Process
– trace + colour + fragrance. No added heat. Longer cure. More dense soap.
Cold Process Oven Process (CPOP) – CP + oven to increase saponification
Hot Process
– trace + heated above 90°C (i.e. slow-cooker) + colour + fragrance. Cures faster, less dense soap.