Using Fermented Kaffir Lime & Butterfly Pea Liquid in Shampoo: Sterilization and Stability

Regarding using fermented kaffir lime and butterfly pea liquid in shampoo:

• Boiling for sterilization: While boiling can kill microbes, it's generally not recommended as it can degrade some beneficial compounds. For example, Vitamin C found in kaffir lime is easily destroyed by heat, although other components like Vitamin B5 are more heat-stable. Other sterilization methods might be better alternatives.
• Effect on beneficial properties: Boiling will likely reduce the effectiveness of heat-sensitive ingredients. The staff also notes that simple fermentation or boiling of a small amount of plant material may result in a very low concentration of active beneficial compounds compared to using concentrated extracts.
• Microbial control and preservatives: The fermented liquid contains a lot of nutrients for microbes, making it difficult to control contamination. Even if you sterilize it, you would likely need to use a higher-than-normal amount of preservative to keep the product stable and safe over time.

In summary, while boiling can kill existing microbes, it may reduce the beneficial properties and doesn't solve the long-term stability issue due to the nutrient-rich nature of the fermented liquid. Controlling microbial growth in such a mixture is challenging, and achieving significant benefits from the low concentration of active ingredients might be difficult compared to using commercially available extracts.