Check out this video: [ame]https://www.youtube.com/watch?v=nmktRTHL1NA[/ame]
This is an immediate reaction using heated NaOH (not a solution). However, it's the same principle. The problem with using a glass dish or pitcher for mixing your lye solution is you have no idea when it will break and it can be violent and dangerous. What if you have hot lye solution and the pitcher just pops and cracks into several pieces?