boletus edulis

The quality standard of dried boletus edulis2010 crop dried boletus edulisOrigin: Yunnan China A gradeB gradeC gradeD grade Sense quality color white and yellow grey or green grey, green, green and black green or black Length (cm) 4-7is greater equal than 2 is greater equal than 22 1.5-2 cm is not more than 10%,other 2 is greater equal than 2 wormy White wormy hole max 5% With white wormy hole, but Yellow max 5% with white, yellow hole, black hole max 5% With white, yellow, black hole pesticide Internal ruler stone max 0.01% Mould mushroom Max 0.2% Foreign mushroom Max 0.01% metal absense Burnt mushroom Max 2% humidity Max 14% insects Max 0.05% GMO NO GMO ionisation Not ionised product SO2 Max 30mg/kg A2 grade : 2-4 cm, other quality standard is same as A grade B2 grade: 2-4 cm, other quality standard is same as B grade.