How is the fishing effect of distiller's grains?

How is the fishing effect of distiller's grains as follows:

Distiller's grains are "treasures" because they can be used as nest materials. This kind of thing is not only cheap, but also effective. Both carp and grass carp like it very much, and they will not leave for a long time after entering the nest. Even after eating, there is still a little fishy smell in the nest, and the fish will stay for a long time.

Content expansion:

1. Distiller's grains should be familiar to everyone, especially the fishing friends who usually love the whole couple. It must be familiar, because it is the residue left after whole grain brewing. Generally speaking, after these grains are brewed, the essence enters the wine and becomes "waste" itself.

2. So people in many places will throw these distillers' grains away as garbage after making wine, or feed them to livestock.