Halp! Volcano or false trace?

[AliOop]

NM, @Mobjack Bay has you covered!

 

[TashaBird]

The easiest way to get a rough idea of the lye purity is to make up a 50% lye solution with room temperature water and then check the temperature as soon as the NaOH is completely dissolved. The temp should be 180F or higher. There are more details and a more accurate method given on the Soapy Stuff website, here.

I’m finally going to test the left over lye tomorrow. It has to be what happened. Does the ambient temp of the water to start with matter?