[fsckboy]

put boiling water in a jar and then shake it up? Ouch! when you agitate hot water, it evaporates a lot faster, bringing the pressure in the jar to great heights. If your seal is not good, or if you open the jar scalding water can come shooting out onto your hands.

a similar thing happens when you put boiling water in a blender and turn the blender on (your blender seal is not good) explosive results.

[JumpCrisscross]

It’s a mason jar. If it’s cool enough for you to hold, it’s not going to permanently disfigure you. Plenty of camping recipes involve putting boiling water in pouches and then squeezing and shaking them.

[squeaky-clean]

The recipe literally says to wait until the water is no longer boiling hot though. Anyone can harm themselves cooking if they don't follow the actual recipe steps.

[digitalsin]

Please note the name of the recipe.

[dotancohen]

A playfully dangerous sounding name is no excuse for a recipe that could literally scald your face for life.