WATCH why this paper Exploded in a hydraulic press

A3 size paper folded 7 times exploded

Hydraulic Press YouTube channel tries to fold this standard A3 size paper to its maximum number of fold it can sustain with the help of a powerful hydraulic press.

The guy who folded the paper by hand five times, then the thing gets more interesting when it comes to the sixth folds in the seventh folds the paper seems to explode, leaving a brittle mass like a piece of cement.

According to the expert the most likely explanation for the catastrophic failure of the paper wasn't the cellulose (wood) fibers, but another component of the paper, calcium carbonate.

Source: YouTube by Hydraulic Press Channel