An apparatus, system and method of detecting contaminants, such as melamine, in at least one ingestible item. The apparatus, system and method may include a disposable notched probe having therein at least one send and one receive fiber optic, or electrical, or heat source, and a reactant associated with said disposable notched probe, wherein a reaction of the reactant with at least a portion of the ingestible item indicates, to the consumer user, a presence of a contaminant.