Water content

≤7.0%

Ash

≤7.0%

Theanine

≥20%、30%、40%

PH(10% solution）

4-7

Particle size

Not less than 100% pass 40 mesh

As

≤1.5ppm

Pb

≤1.0ppm

Total bacteria

≤1000cfu/g

Yeast&Mold

≤50cfu/g

E.coli

≤400MPN/100g

Salmonelia

Negative