1. Real duck blood is particularly thin, smooth and tender. It is elastic when picked with chopsticks and feels like tofu in the mouth. Check to see if there are any holes. Real duck blood has very few holes.

2. Real duck blood is darker in color than pig blood, dark red, and has better elasticity. Fake duck blood is generally brown.

3. The real duck blood has undergone high-temperature degassing and deodorization during processing. It has no bloody smell, but has a duck fragrance; the fake duck blood has honeycomb-shaped pores inside after being broken open. , some starch and other chemicals are often added during processing, so it is generally tough and can be stretched, while real duck blood is relatively brittle.

4. The taste of real and fake duck blood is also very different. The real duck blood is very tender and fragrant. Fake duck blood tastes tasteless and tough, like eating jelly.

5. The simplest method is to use chopsticks to pick up the blood. If you can't pick it up easily, it's fake duck blood. If it's easy to pick up, it's real duck blood.