Contents	Items	Spec
Physicochemical property	Water	≤5.0
	Ash	≥0.5
	Catechin	≥15.0，≥50.0，≥75.0
	EGCG	≥5.0，≥15.0，≥45.0
	Caffeine	≥1
	Total heavy-metal(ppm)	≤10.0
	Pb(ppm)	≤1
	As(ppm)	≤1
	Solubility	Cold or Hot water
	Pesticide Residue	Negative
MicrobiologicalTests	Total bacterial colony（cfu/g）	≤1000
	Yeast&Mold（cfu/g）	≤100
	E.coli	Negative
	Salmonella	Negative
Organoleptic Properties	Appearance	Light yellow, brown granule
	Gustation	Slight bitterness, aroma