Project requirements Red oil flavored bean curd Green bean curd Red oil stinky bean curd Bean curd sauce Solids a/(g/100g)≥ 60.0 Amino acid nitrogen (calculated as nitrogen)/(g/100g)≥ 0.450.40 0.60 0.60 0.50 Total acid ( (calculated as lactic acid)/(g/100g)≤ 2.5 Water-soluble protein/(g/100g)≥ 3.5 Acid value b (calculated as fat) (KOH)/(mg/g)≤ 5.0 Peroxide value b (calculated as fat )/(g/100g)≤ 0.25 Lead (calculated as Pb)/(mg/kg)≤ 0.5 Aflatoxin B1/(μg/kg)≤ 5.0