The Government of India has made a prescribed list of all the mandatory ingredients in tea leaves, any manufacturer is completely obliged to follow all the conditions. Sr. No.elementmass per mass1FlavonoidsShould be between 6.25% to 55.69% (to prevent cancer).2TheaflavinsIt should be from 0.78% to 2.15%.3Crude FibreShould not exceed 16.5%.4Pesticide ResiduesThis also should not be. There are total 8 types of these.4aDicotol5.0mg per KG4bEthian5.0mg per KG4cFenazaquin3 mg per KG4dGlufecinate Ammonium0.01 mg per KG4eGlyfosate1.0 mg per KG4fPropargite10.0 mg Per KG4gQuinalphos0.01 mg Per KG5Acid Insoluble AshShould not be more than 1.0% (to check the amount of dust in leaves)6Total AshShould be between 4.0% and 8%.7Water soluble ashShould be 45% of the total mass.8Water ExtractShould not be less than 32%.9KOHIt should be between 1.0% and 3.0% of total ash.10ColorAn ideal tea should not have any color.11Iron Filing250 mg per KG12Lead10 mg per KG13Copper150 mg per KG14Aflatoxin(B1, B2, G1, G2 are all dangerous virus causing elements.) It is better if this is not in the tea.