A really spectacular experiment: ignition of ground coffee.

If anyone would ignite some ground coffee not this result would be obtained. The trick was that we previously liquefied some oxygen, added the ground coffee (ATTENTION: it could explode!) and then poured out this ground coffee/liquid oxygen mixture in a porcelain crucible. When the liquid oxygen evaporated, the coffee was lit and it burned as a rocket fuel (as seen on the pics).

Something interesting: Coffee beans have a high potassium content as seen from the color of the flame.

9:30 pm • 19 January 2015 • 694 notes • View comments