How to Test pH with Red Cabbage
Soapmaking 101 with the Soap Queen
All the fundamentals of making cold process soap from scratch with lye and oil; make all natural sustainable soap from scratch for yourself of start a side hustle selling soap.
Anne-Marie Faiola
PodcastAI
PodcastAI

How to Test pH with Red Cabbage

E117 • Apr 25, 2025 • 3 mins

In episode 117 of Soapmaking 101 with the Soap Queen, Anne-Marie Faiola introduces listeners to the essentials of soapmaking, with a focus on understanding and testing pH levels. The episode begins with a warm welcome and an introduction to the foundational aspects of soapmaking. Anne-Marie then explains how to test pH using natural indicators, providing practical insights for soapmakers. She addresses the common issue of lye-heavy soap batches, offering solutions to correct them. The episode also includes a segment featuring resources and supplies from BrambleBerry.com, equipping soapmakers with the tools they need to succeed in their craft.

Key Points

  • Red cabbage juice can be used as a natural pH indicator to test the safety of your cold process soap.
  • The color change in the cabbage juice helps identify if your soap is within the safe pH range or if it is lye heavy.
  • Cabbage juice can be stored in the fridge for about a week, allowing you to test multiple batches of soap.
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