Dear, it's my pleasure to serve you ~ Here's a query for you: We can use onions, ginger and garlic to deodorize when cooking, but the best and healthiest way to deodorize duck intestines is to wash the white things inside. After cleaning, pour clear water into the basin, and edible salt or alkali can be added to make the salt or alkali fully dissolve with water and duck intestines. Soak for about 10 minute before cleaning. Another way is to deodorize with lemon juice. Slice the lemon, then pour the juice on the duck intestines and stir with chopsticks to let the juice penetrate into the place. In order to ensure the hygiene of the material itself, it is best to cook it in hot water for a while before cooking ~ I hope my answer can help you, and I wish you all the best and a happy life ~ [Rose]