The knife is not sharp enough: when slicing raw fish, if the knife is not sharp enough, it is difficult to slice the fish thinly and evenly, which is more likely to lead to the fish sticking to the knife.

The fish is not fresh enough: If the fish is not fresh enough, the muscle tissue will become loose and easy to stick to the knife.

You can dab some water on the knife or heat the knife while cutting, which can also effectively avoid the problem of sticky knife.