If you are referring to minimizing the smell while cooking chitterlings, also known as hog maws, here are a few tips. First, soak the chitterlings in vinegar and water for at least 30 minutes. Then, rinse them several times with fresh water. Next, simmer them in a pot of boiling water for about an hour. You can also add seasonings such as garlic, onion, salt, and pepper to the boiling water. Finally, drain the chitterlings and rinse them one last time with cold water before cooking them as you normally would.