According to the provided reference, the best base oils to use for homemade soap are saturated fats.
These saturated fats are highly valued in soap making primarily because they are essential for creating a soap bar that is harder and lasts longer. This makes them ideal for forming the main structure and durability of your finished soap bar.
Saturated fats are typically solid at room temperature and therefore need to be melted before being combined with other ingredients in the soap-making process.
Examples of saturated fats considered among the best base oils for soap, as listed in the reference, include:
- Coconut oil: Known for producing hard bars with excellent lather.
- Cocoa Butter: Adds hardness and moisturizing properties.
- Palm Oil: Contributes significantly to hardness and creates a stable lather. (Note: When using palm oil, look for sustainably sourced options).
While many other oils are used in soap making (like olive oil, shea butter, etc.), saturated fats form the crucial foundation for a firm, long-lasting bar. Using a blend that includes a significant proportion of these saturated fats is key to achieving desirable soap qualities.