Needle shaped calcium oxalate crystals called raphides have been upon as an important indicator of aroids. The aroids are a sub-group of Araceae which is a family of mainly herbaceous plants that are known to produce raphides in abundance. When eaten raw they cause swelling of the lips, mouth & throat. Detoxification via cooking, pounding or leaching neutralizes the chemical, hence making the aroids edible but does not destroy or degrade the raphides [1,2,3,4].