Popcorn has a high lead content because there is a layer of lead or a lead-tin alloy inside the tin cans of the popcorn maker and at the seal.

When the tin cans are heated, part of the lead in the form of lead fumes or lead vapor, when the rapid decompression of the popcorn, the lead will be easily adsorbed by the fluffy rice flowers and contaminate the rice flowers.

Currently regular sales of popcorn content is less in the national standard range, while the street old-fashioned popcorn machine contains ductile lead sealing machine, after high-temperature heating lead will become lead vapor mixed into the popcorn, so that the popcorn contains a large amount of lead.

New popcorn lead:

Now the production of popcorn, has long since gotten rid of the early leaded "converter" reliance on the production process has also increased the number of pans, microwave processing methods. Therefore, in line with national food hygiene standards for popcorn, even if its food ingredients contain traces of lead, but also can be safely consumed.