While an estimated two-thirds of Jewish Israelis keep kosher to some degree, many don’t adhere to the strict standards of the ultra-Orthodox. Retailers pay more than $100 million a year to religious councils whose inspectors spend almost 6.5 million hours making sure the food, pans, pantries and ovens are all in compliance, according to an IDI study. Most of those payments go to the ultra-Orthodox, making the enforcement of kashrut — the body of Jewish laws pertaining, among other things, to dietary practices — an important revenue stream.