Cook and soak corn kernels and wheat kernels, stir corn flour and wheat bran together, add a little water, steam in a pot for 20 minutes, then stir the above four ingredients together and put them in a sealed black plastic bag, spray some sake koji on the mouth of the bag, seal it for 2-3 days before use, and add distiller's grains when using. This bait can quickly lure fish, and it has a long retention time and good effect, but the disadvantage is that the preparation process is more troublesome. The bait is musk corn kernels, or the corn kernels are hooked in the material. Fishing grass carp is not like fishing carp. When fishing grass carp with corn kernels, the hook tip should penetrate from one side of the corn kernel garden and from the navel, and the hook tip must be exposed.