Crushed walnut shell is a natural mixture ingredient with a brown or light brown color.

Walnuts are grown in enormous volumes, with production amounts to around 3.5 million tons per year, and China is the largest producer. Walnut shells are a by-product of walnut processing, mainly from the food industry.  Crushed walnut shells are made of high-quality natural walnut shells. Processed by crushing, polishing, fumigation, embalmment, and multiple screening.