In 1847, the invention of the candy press (also known under the surprising name of a toy machine) made it possible to produce multiple shapes and sizes of candy at once. In 1851, confectioners began to use a revolving steam pan to assist in boiling sugar. This transformation meant that the candy maker was no longer required to continuously stir the boiling sugar. The heat from the surface of the pan was also much more evenly distributed and made it less likely the sugar would burn. These innovations made it possible for only one or two people to successfully run a candy business.
Prior to the 1900s, candy was commonly sold unwrapped from carts in the street, where it was exposed to dirt and insects. By 1914, there were some machines to wrap gum and stick candies, but this was not the common practice. After the polio outbreak in 1916, unwrapped candies garnered widespread censure because of the dirt and germs. At the time, only upscale candy stores used glass jars. With advancements in technology, wax paper was adopted, and foil and cellophane were imported to the U.S. from France by DuPont in 1925. Necco packagers were one of the first companies to package without human touch. Kiosks and vending machines were introduced around the beginning of the 20th century.
At the 1904 World Fair, the Quaker Oats Company made a candy-coated puffed cereal, a wheat-based product similar to Cracker Jack's candy-coated popcorn. The product concept was re-introduced unsuccessfully in 1939 by another business as Ranger Joe, the first pre-sweetened, candy-coated breakfast cereal. Post Foods introduced their own version in 1948, originally called Happy Jax and later Sugar Crisp. They marketed it as both a replacement for unsweetened breakfast cereals and also for eating as a snack or as candy, using three animated cartoon bears as the mascots: Candy, Handy, and Dandy. The early slogans said, "As a cereal it's dandy—for snacks it's so handy—or eat it like candy!"
Global sales of candies were estimated to have been approximately US$118 billion in 2012. In the United States, $2 is spent on chocolate for every $1 spent on non-chocolate candy.
Judging from recent statistics, it is evident that Halloween candy is still at high demand. In 2021 alone, profits from halloween candy were up to at least "$324 million". From the same report, the demand for halloween candy was "up 59.8% from 2019". From these numbers it can be presumed that Halloween is still a big deal for Americans. An even bigger deal for the American public is the act of receiving candy from trick-or-treating. Candy continues to be a staple for the Halloween season and remains the biggest draw for participation.
Sugar candies can be classified into noncrystalline and crystalline types. Noncrystalline candies are homogeneous and may be chewy or hard; they include hard candies, caramels, toffees, and nougats. Crystalline candies incorporate small crystals in their structure, are creamy that melt in the mouth or are easily chewed; they include fondant and fudge. In 2022, flavorless candy was developed that was hard but not sweet.