DIY "Liquid Nitrogen" Liquid Propane!

The video demonstrates using liquid propane as an analog to liquid nitrogen for freezing and shattering objects like mushrooms and flowers. It explains the process of modifying a propane valve and emphasizes safety precautions due to the fire hazard. The video concludes with a demonstration of the fire potential of liquid propane.

How does the experiment demonstrate the properties of liquid propane compared to liquid nitrogen?

What modifications were made to the propane valve for the experiment?