The Pesach Sleuth
Imagine walking into a factory, noticing the ceiling, 25 feet overhead, lined with rows upon rows of similar-looking pipes. “How am I possibly supposed to know what goes through these pipes? How can I possibly check if they have been cleaned properly, and how can I possibly kasher them?"
When we purchase products for Pesach, we look for a hechsher that we respect, and we rely on that hechsher to make sure everything is done properly.