Food safety regulator FSSAI has asked the state-level enforcement authorities to carry out inspection at various tea processing units to check adulteration of iron fillings in the beverage. The regulator has recently conducted a large-scale laboratory analysis of tea powder for determining the limit on iron filling. After finding wide variations in the test results, theFSSAI said that until method of assessment for iron fillings is finalised, the state food safety officials can carry out inspections at the factories.Earlier, the Food Safety Standards Authority of India (FSSAI) had capped the maximum limit for iron particles in tea powder at 150 mg per kilogram. In many cases, it has been found that the tea powder is contaminated with iron filings. Iron fillings enter tea due to wear and tear of the processing machinery.