were regularly sold in
bulk during the 19th century. Later, parents thought that pre-packaged foods were more sanitary. Claims that candy was poisoned or adulterated gained general credence during the
Industrial Revolution, when food production moved out of the home or local area, where it was made in familiar ways by known and trusted people, to strangers using unknown ingredients and unfamiliar machines and processes. Some doctors publicly claimed that they were treating children poisoned by candy every day. If a child became ill and had eaten candy, the candy was widely assumed to be the cause. However, no cases of illness or death were ever substantiated. In the 1890s and 1900s, the
US Bureau of Chemistry, in conjunction with state agencies, tested hundreds of kinds of candy and found no evidence of poisons or adulteration. These tests revealed that inexpensive
glucose (from
corn syrup) was in common use for cheap candies, that some candies contained trace amounts of copper from uncoated copper cooking pans, and that
coal tar dyes were being used for coloring, but there was no evidence of the many types of poison, industrial waste, garbage, or other adulterants alleged to be present. Eventually, the claims that children were being sickened by candy were put down to
indigestion due to overeating, or to other causes, including
food poisoning due to improper cooking, hygiene, or storage of meat and other foods.
Effects at a
trunk-or-treat event at a church in
Illinois Due to their fears, parents and communities restricted trick-or-treating and developed alternative "safe" events, such as
trunk-or-treat events held at Christian churches. This collective fear also served as the impetus for the "safe" trick-or-treating offered by many local
malls. This story also promoted the sale of individually wrapped, brand-name candies and discouraged people from giving homemade treats to children. Children of all ages (age 0 to 17) are three times as likely to be killed by a vehicle on Halloween than during the rest of the year. == Candy-tampering myth ==