Boiling tripe before cooking is a common step in many recipes and is often recommended to ensure it is properly cleaned and tenderized. 1. Cleaning Tripe can have a strong odor and may contain impurities or residual stomach contents. Boiling helps to remove any unpleasant smells and thoroughly cleans the tripe. 2. Tenderizing Tripe is made up of tough connective tissue, boiling helps break down these fibers, making it more tender and easier to eat. 3. Par-cooking Tripe Boiling means partially cooking it, which can be beneficial when using it in recipes that require further cooking, such as stews or slow-cooked dishes.