What cargo that was not explosive could sink a wooden ship within minutes in the days of old?

Rice if it gets wet?What cargo that was not explosive could sink a wooden ship within minutes in the days of old?
The capacity to let fire get out of control.What cargo that was not explosive could sink a wooden ship within minutes in the days of old?
HOLE.
when the rats started leaving.
Termites.
gold and silver.....
If it could sink a ship within minutes, why would it be cargo?





My guess: Water. (not in minutes though, hmm)