How long do you wait to cut after de-molding?
You cut the loaves as soon as you un-mold. If you make a palm, based formula, then you will de-mold sooner than soy based formula, because it will harden quicker. Record what you see and experience. There is no hard and fast rule. Handcrafted, cold processed and hot processed soap has such a wide range of conditions. Remember, if you wait too long, it can be tough cutting through with your wires.