Modifying olive oil: my experience and a few questions--

I mixed 15ml water, 20 ml dishwashing detergent (Palmolive brand) and 10ml glycerine. I added 500 ml extra virgin olive oil and heated while stirring until it began to foam. Question: this stuff foamed like crazy. I had to remove the pot from the burner for a bit to regain control. Someone mentioned that clothes washing detergent or a spray cleaner like "409" brand would reduce the amount of foam--Did anyone actually try this alternative?

I resumed cooking and continued until the foaming stopped. I then had a brownish-clear oil with a dark-brown separation on the bottom. I poured off the oil into a plastic bottle and let it sit to complete separation. Due to the brown tint to the oil, I decided to "wash" it. I poured off the oil, added 25% water to it and agitated it. This formed an opaque creamy yellow solution (an emulsion?). I let it sit overnight and a semi-clear water layer formed on the bottom but the appearance of the top layer did not change. I decanted and then repeated the 25% water wash. Again, an overnight sit produced a separation but no change in creamy yellow appearance of the upper layer.

Finally, I decanted and then gently heated the oil. I discovered that "gently" was the only method, otherwise superheated water from beneath the oil exploded upwards, spraying oil all over the place. By stirring constantly and maintaining just enough heat to drive off the water I ended up with a pleasant amber colored oil, much like the original oil in appearance. No further separation was detected.

How does my experience compare with those of you who have actually attempted to modify olive oil?

If the rain ever stops, I'll report on my mixes and testing.

George