zap test

I made this yesterday night. I put it in molds at about 7 PM last night. I do not have a stick blender & used my whisk, sometimes attaching it to a hand-held blender, sometimes doing it by hand. I think I did about 10 minutes of blending but it never got to trace. I lost faith and looked up on...

silly me, this was the first time I was half-willing to zap test. No no, this was not my first zap test - far from it, I was just antsy because my Castile had swirls. So I was thinking not all had saponified properly and that I would get a bad zap. ... which no one likes... but ya gotta do it...

I'm new to soaping and have read that you should test the PH of your soaps. A lot of what I've read on this site mentions the 'zap' test. What is that and how do you perform it? I also read about some chemical (can't remember the name now but I think it started with a 'T') was also useful in...

So I started taking my soap out of the mold and it felt kinda soft so i decide to leave it in for a while longer. Now before I put it down I tried the zap test ( putting tongue on it) and I think it tingled a little. Now i'm not sure if it was just my mind playing tricks on me or what but I...