Is it better to kill eels or freeze to death alive?

After the eel is slaughtered, it can be kept fresh or frozen in the refrigerator.

White eel, a kind of eel, whose scientific name is eel, also known as river eel, is a migratory fish. Born in the sea, grew up in the river. Its shape is cylindrical, its front is thin and flat, its scales are thin and buried under the skin, its skin is smooth, its back is dark green and its abdomen is white, so it is often called "white eel" in Guangdong, Fujian, Zhejiang and other provinces.