The Kosher Toothpaste Debate
The Orthodox Union, which certifies as Kosher more than 400,000 products, includes a long discourse on toothpaste on its web site. Though most dentifrices contain glycerin, an animal product that is “unquestionably” non-kosher, it’s not completely clear whether they’re treyf; the OU quotes some complicated rabbinical rulings involving flavor and usage of the product. “If…