Good Old Fashioned Hard White Soap

A recent student in a soap making class I taught wrote and asked me how to make her soap whiter. I had given the students a basic recipe like my Grocery Store Soap Recipe with an equal ratio of Olive, Palm and Coconut oil, and a little Castor thrown in for extra lather. It came out a nice light beige color. Not nearly as beige as with Goat's Milk Soap, but not as white as she wanted. I made sure that her fragrance oil wasn't the culprit. It wasn't. She was using a really nice, clear, lavender-based fragrance oil. So since that wasn't the culprit, I told her the two basic ways to get her soap whiter.