Study on Multifactor Control Experiment and Design of Quality Detection System for Yuba Skin Production

Table 2

Quality grade classification standard of Yuba skin.

The quality level	Quality classification standard
	Color	Uniformity of color	Surface texture
Master	Light yellow	Uniform	Fine texture, no impurities
Medium	Light yellow	Basically uniform	No short strip fragments and visible impurities
Inferior	Dark yellow or deep red	Significant difference	There are fragments and visible impurities