I've always soaped at 33% Lye Concentration, not because I understood it too well, but because that's what I have read for years :)
But anyway.. I have noticed that the Calculator at Summerbeemeadow's website says to use lye at around 30% concentration when determining the amount of oils to use...
I too have been wondering about this Lye Concentration of 33%.
I read the info on that link provided above, but I am still a bit confused.
In SoapCalc I have 44oz of oils at 33% Lye Concentration.
It says to use 6.14oz of lye and 12.48oz of water.
I am not understanding how lye x 2...