rennet is sometimes made from stomach linings, yet is acceptable for making kosher cheese, but such cheeses might not be acceptable to some vegetarians, who would eat only cheese made from a vegetarian rennet. Likewise, some products bearing a vegan certification label do not have the status in halakha as pareve due to incidental contact with dairy ingredients or utensils that render the item dairy, while still qualifying by the vegan certification as containing no animal products. Pareve and allergies Those allergic to dairy foods may assume items labeled as "pareve" to be dairy-free, though this is not always the case. Kashrut has procedures by which equipment can be cleaned of its previous non-kosher use, but that might be inadequate for those with allergies, vegetarians, or adherents to other religious statutes. For example, dairy manufacturing equipment can be cleaned well enough that the rabbis grant pareve status to products manufactured with it. Nevertheless, someone with a strong allergic sensitivity to dairy products might still react to the dairy residue, and that is why some products that are legitimately pareve carry "milk" warnings. The general rule on such matters is that an item accidentally containing dairy ingredients could be considered pareve if the dairy is present in a fraction of less than 1/60 (1.67%) of the total. Furthermore, in commercial pareve food production supervising agencies often try to be stricter than that. However, people with allergies can be sensitive to far lower concentrations of such ingredients — even parts-per-million concentrations — and therefore may not be able to rely on a pareve marking. Usage in slang The word "pareve" is also used in contemporary Israeli slang to imply that something is mediocre or that a statement lacks a clear message. See also Halal References External links Food law Hebrew words and phrases in Jewish law Kashrut Yiddish words and phrases