What is this?!?

[Biffinthefuture]

Im not sure what this bubble is in my deems. Thanks for any input

 

[Varallo]

Looks like water.

 

[Biffinthefuture]

I did forget to wipe the bottom of the pan and some water did fall into the naphtha so that would make sense. Ive made multiple batches and hadn't seen that before but I had wiped the bottom to make sure no water got in the pan and forgot this time. Thanks!