Why is popcorn high in lead?

The processing tool "converter" contains lead.

Health workers in China analyzed the lead content in popcorn, and found that the average lead content in raw corn for popcorn production was 0. 1 15 mg/kg, which met the national health standards. However, after processed into popcorn, the average lead content reached 4.96 mg/kg, which was more than 40 times that before processing. The reason is that the sealing layer of popcorn machine is cast iron with lead. The popcorn produced in this way will bring the risk of lead harm to human body.

But now the production of popcorn has long since got rid of the dependence on the early lead-containing "converter", and the processing methods of pan and microwave oven have been added in the production process. It is safe to eat popcorn that meets the national food hygiene standards, and the trace lead contained in its food raw materials will not cause harm to human health.

Lead is an inherent metal element in nature. Modern people, men, women and children, even newborn babies, have lead in their bodies. But most people are healthy individuals and do not belong to lead poisoning patients.

Due to the cumulative influence of environmental and human factors, the lead content in air, water, soil and various animals and plants can not be zero, and it is not an environmental medium that leads to human lead poisoning on the premise of meeting the corresponding sanitary standards. Therefore, from the basic needs of modern people such as food, clothing, housing and transportation to eating and drinking water, people need to change their "zero tolerance" attitude towards lead content.

References:

People's Network Healthy Diet: Can popcorn contain lead? 》