Why does eating egg yolk choke?

The human esophagus is a tube that can creep in one direction. When eating, food is chewed in the mouth and wetted by saliva, so it easily passes through the esophagus. If the food is dry, it will get stuck and it will be difficult to get through. This is what is commonly called "choking". Whether the food here is dry or wet refers to the state after passing through the mouth, not the state after eating it. Egg yolk is actually a kind of fat particles wrapped by emulsifier, which has strong water absorption ability. It is also very soft, and people may chew it for a while and then swallow it. Saliva is not secreted much and is easily absorbed, so the swallowed yolk is still in a very "dry" state, and it is easy to be "choked to death" when entering the esophagus. Similarly, there are foods such as mung bean cakes. On the contrary, some originally "dry" foods, such as peanuts and melon seeds, are hard and need to be chewed. The saliva produced in the process will make them "moist", so people will not choke.