What makes something kosher for Passover?
If something has no grain in it, and did not come into contact with something that had grain in it, or even if pots are hot enough, and chametz touches the pot, and the non chametz touches the pot, it might be chametz. The laws are complicated, and this is not the right place for them. Also, many have a custom not to eat legumes on Passover because their flours’ are simuler to grain flour, or possibly becouse kernals of grain would get mixed into them, and still do sometimes.
