Popcorn Food

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Seventeen-billion quarts of popcorn are consumed in the United States every year, and popcorn is the official snack food of Illinois. Popcorn is mostly grown in Indiana and Nebraska and the quantity of popcorn grown in Texas is increasing. Native Americans originally discovered popcorn thousands of years ago in Mexico. Research has found that popcorn was popped in China during the Song Dynasty and in Sumatra and India over 1500 years ago. Not only has popcorn always been a popular food across civilizations and time, it was also used as ornaments on statues of Aztec gods such as decoration for ceremonial headdresses and necklaces. Charles Cretors of Chicago, Illinois, invented the first popcorn machine in 1885. This was the begging of street …show more content…

Steam is created when the water inside the kernel is heated. This builds pressure inside the pericarp. The pressure from the steam turns the soft starch in the endosperm into a gelatinous substance. The pericarp can only hold pressurized steam up to 9.2 atm (135 psi) rupturing when the pressure goes above that amount releasing the steam and starch. The solidified starch appears in the form of the white popcorn which is 40 to 50 times its original size (The Science of Popcorn, 2017).

Every kernel does not always pop when cooking popcorn. There is a scientific reason for this, i.e., moisture loss. Popcorn pops due to the phase change of water from a liquid to a gas. This is known as the kinetic molecular theory of gases (The Science of Popcorn, 2017). Popcorn kernels will not pop if the moisture inside of the kernel is lost. If the pericarp is damaged the water may escape it, thus no steam can be created, because the pressure cannot build up within the damaged pericarp. The popcorn kernel can be damaged during processing, it can get stale, or simply too old. Even cooking the kernel with the heat too high can damage the pericarp by scorching it (Why do some popcorn kernels not pop?, …show more content…

Others believe that the most expensive name brand for popcorn kernels must be purchased for the perfectly popped bowl of popcorn. Society today largely purchases popcorn at movie theaters or from grocery stores in the form of packaging prepared to be cooking in a microwave. Microwaves are very convenient to cook food by utilizing microwaves to heat the food. In fact an engineer named Percy Spencer accidentally discovered the use of microwaves for cooking food when the candy bar in his pocket melted while working with the technology. His first experiment was to try to cook popcorn with the microwaves. It did indeed work (Sobey,

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