I have thought and thought about this. My theory is that while commercially prepared soap bubbles right off, it is also not cured like ours is. To make "soap", they make it with syndets, grind it up, remove the glycerin, then mash the rest together, and sell it. The syndets and the lack of curing, IMO, gives it that "instant bubbles" that we lack on cured soap.
I think our soap, while curing, loses "something" to the air that can be recovered once we use it a few times. However, even on the first use, our handmade soap is better than any syndet bar out there.
I think our soap, while curing, loses "something" to the air that can be recovered once we use it a few times. However, even on the first use, our handmade soap is better than any syndet bar out there.