Old-fashioned popcorn containing lead

Old-fashioned popcorn contains lead, in the past, most of the sealing layer of the popcorn machine is made of lead-containing cast iron, due to the melting point of lead is only more than 300 degrees Celsius, the popcorn in the production process can reach 400 degrees Celsius in an instant, so there will be lead vapor contamination of the popcorn, making the lead exceed the standard.

Popcorn is made with corn, ghee, sugar together into the popcorn machine made of a puffed food, the taste is sweeter.