09/24/2026
Ever have a handmade soap that lathers beautifully for you, while someone else swears the exact same bar barely bubbles? Before you start changing the recipe… check the water. 🫧
Hard water contains calcium and magnesium, and those minerals react with traditional soap. Some of your soap can get tied up forming insoluble soap scum instead of staying available to clean and lather. That means the same bar can behave surprisingly differently from one house — or one city — to another.
In the new article, I’m breaking down why hard water affects lather, why it creates soap scum, whether citric acid actually helps, why I recommend distilled water for making soap, and what you can realistically change in your formulation.
Sometimes a perfectly lovely soap is just having a really lousy relationship with somebody’s water. 😆
Read it here: https://soapyfriends.com/hard-water-handmade-soap/