I have a batch of soap that has already cured for longer than 6 months. But When I went to get one to use I found out that half the soap looks white and the other half remained somehow translucent (not exactly) why dis this happen, does it affect the quality of my soap. Though it is for personal use only. What could have been my mistake? To prevent it on further batches.
Hi elvira, did you use a large amount of virgin olive oil in your recipe?
If so, it is the entirely normal colour transition that occurs in these traditional style castile soaps
Castiles turning white after the long cure:
Castiles made from a cold press olive oil tend to start out a yellow (sometimes green!) colour, and transition an almost pure white over time.
The white usually starts in small places around the soap at around 5 months and continues until the soap becomes white throughout, finishing somewhere around 9 to 12 months.
Where the colour change starts is about the only thing that varies (I've had everything from little spots that spread, to corners that join up, and one that just gradually shifted, as a whole soap, from almost florescent green-yellow to a beautifully soft cream colour!)
Once it starts, the entire bar of soap finishes turning white in a few months.
It's worth noting that all of the soaps in the same batch start going white within a few weeks of each other, so once one starts, expect the other soaps in the same batch to transition too ... it's quite normal for this to happen towards the end of the long cure.
Olive soaps that have been long cured tend to have better bubbles and a gentler action on the skin