It's huge. Chicken juice is a juicy compound seasoning made from chicken bone or chicken or its concentrated extract. Its taste is equivalent to the soup cooked by the chef with old chicken, and it will be used in dishes with clear soup and bright color in catering. Chicken oil refers to the fat in the belly of a chicken, which is especially soft and tender, so its oil is easy to dissolve out. There are three traditional methods for refining chicken oil. Although chicken oil is delicious, it has almost no nutrition.