IN THESE BIG CLAY JARS, WATER IS STORED.
DUE TO THE DRY CLIMATE OF BAGHDAD, THE WATER EVAPORATES THROUGH THE PORES AND AS A RESULT THE WATER COOLS INSIDE THE JARS .
UNDERNEATH EACH JAR THERE IS A CLAY RECEPTACLE WHICH COLLECTS THE WATER DROPLETS FILTERED THROUGH THE PORES.
FROM THE RECEPTACLES YOU GET COLD AND FILTERED DRINKING WATER.