Thanks, AnnaMarie .
There is confusion in the web but because whoever wrote it mixes two concepts. Like you can see that is the method of grandmothers , a bowl and a stick and turning for hours until the stick is left standing in the batter. This soap is made from recycled oil ( here in Spain we have plenty of olive oil, fry in 3 liter fryer oil used and changed every 20-30 days ) Realising that used oil, took advantage to make soap with that amount of soda because it was the soap washed when no detergents. It is a great soap today is highly coveted because it leaves very white clothes.
It also happened when the kids are old enough to have pimples on your face , but only used in that area. As you will understand if you use that soap with that amount of soda leaves a hard soap, excessive cleaning, few bubbles (but in this special case is not fulfilled what the calculator makes since to cure the better over time, has a lot of foam ) but the conditioning is very low : this indicates that it is not a cosmetic soap, please do not use it regularly you 're doing a peeeling !
So far I think all clear and now I commented that when they speak of soap bought in Sevilla ( I am from Sevilla) is a soap with the same ingredients (no recicled oil) but different formula and it is the best.
I put a photo of my mother with soap that formula. you'll see that are crude soaps and cleaning because they are dissolved in water used to clean the floor, especially marble.
I've laughed a lot because reading the web says "Bragas Limpias" (traduction: Clean panties) hahahahahaha She will be the cleanest village woman and this is because we often put people nicknames. 8)
AnneMarie I only know of two other types of experiments I did, one that is the laundry soap with percarbonate (6 l de aceite, 6l de agua, 1Kg de sosa, 1Kg de percarbonato) and Savon noir, maroccan or beldi that I put it on this site
http://www.soapmakingforum.com/showthread.php?t=42736