- May 2, 2016
- Reaction score
I tested 8 of my soaps today with Phenolphthalein. I put a couple shreds of each soap in warm water in a small plastic cup and mixed them up. I tested each with a pH test strip and they all showed around 8. I added the Phenolphthalein to each cup and instantly they all went pink. After a few minutes three of them stayed pink and the other 5 went purple and one went orange (that soap was orange coloured) I am not sure what is safe and what is not safe. I would think the three that are very pink are lye heavy (those were my castile soaps) I am not sure about the others that still have a pink tinge. The 5 that are pink/purple are about a week out of the mold. The three castile soaps are months old...