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.
Many other articles germane to Pesach are available on the website RabbiKaganoff.com. You can find these articles using the search words:
matzoh; chol hamoed; chometz; ga’al yisroel; hallel; omer; mei’ein sheva;