Brown spots and streaks in cold press soap

[cib]

The rows of spots and your use of a metal rack are a strong correlation. Metals act as a catalyst to break down free fats, so this basically is a row of DOS spots. Very few cooling racks are stainless, by the way.

The spots were there at the time of cutting but they do appear to have faded in other areas but where the metal rack touched the soap. I'm going to try another batch but this time stand them up on the end and see if I get the same result.

The marks aren't the same on each bar but I inspected multiple bars and it appears to be darker where it touched the drying rack. Where it wasn't touching they seem to have faded drastically.

The ZAP test came back good so nothing there.