We put an couple of hundred cc's of liquid nitrogen into a two liter pop bottle. Put the lid on and dropped it into a 5 pound coffee can with about 2 inches of water in it, covered the whole works with a 5 gallon plastic bucket and got back about 120 feet. You see the result. Calculations based on measurements we made give a peak height of 88 feet.

Get way back if you decide to repeat this. You should be aware that fragments of the bottle landed more than 70 feet away from the launch point.