What is distiller's grains?

Distiller's grains: The residue after distilling alcohol or alcoholic beverages from grains, which is used as livestock feed.

Distillate: Dissolved residues and particles left after coarse filtration to remove solid particles.

The dregs left over from brewing. Jia Sixie in the Northern Wei Dynasty wrote Qi Yao Min Zuo Shu Zha Fa: "Distiller's grains retting method: spring distiller's grains are soaked, and distiller's grains are also used." Song Meng's Dream in Tokyo in December: "It is called' drunken life' to smear the oven door with distiller's grains." Song and Ming Ying Xing's Heavenly Creations: Qu Zi: "Its Qu Zi is blind, and it is a vital vein, while rice and wheat are used as materials, but Qu Zi must be used and distiller's grains as the medium."