Cold process soap making is a traditional technique that produces high-quality, long-lasting bars of soap. At Aroma Alchemist LLC, we use this method to craft our organic, wellness-focused soaps, ensuring they retain all the natural benefits of their ingredients. In this guide, we’ll walk you through the basics of cold process soap making, why we choose this method, and how it supports our commitment to quality and sustainability.
What is Cold Process Soap Making?
Cold process soap making is a technique that relies on saponification—a chemical reaction between oils and an alkali (sodium hydroxide, or lye)—to create soap. Unlike hot process soap, which is cooked, cold process soap is mixed at lower temperatures and left to cure over several weeks. This slow curing process results in a harder, longer-lasting bar with a luxurious lather.
Why Choose Cold Process Soap?
- Preserves Beneficial Ingredients – The lower temperatures used in cold process soap making help maintain the integrity of essential oils, plant-based additives, and natural clays.
- Customizable and Handmade – This method allows for complete control over ingredients, ensuring each bar is free from synthetic fragrances, artificial preservatives, and harsh detergents.
- Eco-Friendly & Sustainable – Cold process soaps eliminate the need for excess packaging and can be crafted with responsibly sourced, biodegradable ingredients.
The Basic Steps of Cold Process Soap Making
Step 1: Gather Your Ingredients & Equipment
To make a simple cold process soap, you will need:
- A blend of high-quality oils (such as olive oil and coconut oil)
- Sodium hydroxide (lye)
- Distilled water
- Essential oils for scent
- Plant-based colorants or clays
- Safety gear (gloves, goggles, and a mask)
- A digital scale and thermometer
- A stick blender
- A soap mold
Step 2: Measure & Mix the Ingredients
- Carefully measure out the oils and lye solution.
- Slowly mix the lye into distilled water (never the other way around) and allow it to cool.
- Heat your oils gently until they reach the right temperature range (typically 90-110°F).
Step 3: Emulsify and Add Fragrances & Additives
- Slowly pour the cooled lye solution into the oils.
- Use a stick blender to mix until you reach trace (a pudding-like consistency).
- Add essential oils, natural colorants, and any exfoliants.
Step 4: Mold, Cure, & Enjoy!
- Pour the mixture into a mold and let it set for 24-48 hours.
- Once firm, remove from the mold and cut into bars.
- Allow the soap to cure for 4-6 weeks to ensure a gentle, long-lasting bar.
Watch Our Step-by-Step Video Guide
For a visual walkthrough of the cold process soap-making method, check out our YouTube tutorial: Sudsy Magic: How to Make Gorgeous Soap Like a Pro!
Final Thoughts
Cold process soap making is both an art and a science, allowing for creative and nourishing soaps that align with our mission of wellness and sustainability. Whether you're a beginner or an experienced soap maker, understanding this method can help you appreciate the care and craftsmanship that goes into every bar.
For more soap-making tips, product spotlights, and behind-the-scenes content, follow us on social media:
- Instagram: @aromaalchemistllc
- YouTube: Aroma Alchemist LLC
Or explore our full collection at Aroma Alchemist LLC.
In good health,
Aroma Alchemist LLC