I would be very grateful if some fellow member could help me with this dilema. I make 25 pound batches of cold process soap which I divide at light trace into four sub-batches with different essential oils and additives. The last sub-batch I work on is the simplest one, with only peppermint e.o. and no other additive. By the time I get there, sometimes the soap is way past trace. What I have noticed is that the only soap that sometimes develops DOS is this last one with peppermint. My question is, does DOS develop more easily because I put the soap in molds when it has become pretty hard or is the peppermint e.o. the culprit or what other cause could there be for this selective DOS? The main oils I use are palm, sesame and coconut with small ammounts of castor and olive and cocoa and shea butter.