National Popcorn Day is celebrated on January 19th of each year. The staff at National Whatever Day were unable to discover the origin of National Popcorn Day.
Popcorn or ‘popping corn’ is corn (maize) which expands from the kernel and puffs up when heated. Corn is able to pop because, unlike other grains, its kernels have a hard moisture-sealed hull and a dense starchy filling. This allows pressure to build inside the kernel until an explosive “pop” results. Some strains of corn are now cultivated specifically as popping corns.
There are many techniques for popping corn. Commercial large-scale popcorn machines were invented by Charles Cretors in the late 19th century. Many types of small-scale home methods for popping corn also exist, with the most popular in the USA being prepackaged. Popcorn has both advocates and detractors. Some consider it to be a health food while others caution against it for a variety of reasons. Popcorn can also have non-food applications, ranging from holiday decorations to packaging materials.