Be careful about using a wooden spoon. Make sure you never use it again for anything but soap unless you like the taste of lye. And in time it may actually eat away the wood. I have some plastic spoons that look like wood that I use for soaping, but I avoid using wood. While we are making a more natural type of soap, my recipes anyway, are not the same as those my grandmother made, so I don't feel at all bad about using modern equipment for modern natural soap.