Hard Candy
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A hard candy (
American English American English, sometimes called United States English or U.S. English, is the set of variety (linguistics), varieties of the English language native to the United States. English is the Languages of the United States, most widely spoken lang ...
), or boiled sweet (
British English British English is the set of Variety (linguistics), varieties of the English language native to the United Kingdom, especially Great Britain. More narrowly, it can refer specifically to the English language in England, or, more broadly, to ...
), is a sugar candy prepared from one or more sugar-based
syrup In cooking, syrup (less commonly sirup; from ; , beverage, wine and ) is a condiment that is a thick, viscous liquid consisting primarily of a Solution (chemistry), solution of sugar in water, containing a large amount of dissolved sugars but ...
s that is heated to a temperature of 160 °C (320 °F) to make candy. Among the many hard candy varieties are stick candy such as the
candy cane A candy cane is a Walking stick, cane-shaped stick candy often associated with Christmastide as well as Saint Nicholas Day. The canes are traditionally white with red Stripe (pattern), stripes and flavored with peppermint, but the canes also com ...
, lollipops, rock, aniseed twists, and '' bêtises de Cambrai''. Most hard candy is nearly 100% sugar by weight, with a tiny amount of other ingredients for color or flavor, and negligible
water content Water content or moisture content is the quantity of water contained in a material, such as soil (called ''soil moisture''), rock, ceramics, crops, or wood. Water content is used in a wide range of scientific and technical areas, and is expressed ...
in the final product. Recipes for hard candy may use syrups of
sucrose Sucrose, a disaccharide, is a sugar composed of glucose and fructose subunits. It is produced naturally in plants and is the main constituent of white sugar. It has the molecular formula . For human consumption, sucrose is extracted and refined ...
,
glucose Glucose is a sugar with the Chemical formula#Molecular formula, molecular formula , which is often abbreviated as Glc. It is overall the most abundant monosaccharide, a subcategory of carbohydrates. It is mainly made by plants and most algae d ...
,
fructose Fructose (), or fruit sugar, is a Ketose, ketonic monosaccharide, simple sugar found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. It is one of the three dietary monosaccharides, along with glucose and gal ...
or other sugars. Sugar-free versions have also been created.


Creation

Recipes for hard candy use a sugar syrup, such as sucrose, glucose or fructose. This is heated to a particular temperature, at which point the candy maker removes it from the heat source and may add
citric acid Citric acid is an organic compound with the formula . It is a Transparency and translucency, colorless Weak acid, weak organic acid. It occurs naturally in Citrus, citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, ...
, food dye, and some flavouring, such as a plant
extract An extract (essence) is a substance made by extracting a part of a raw material, often by using a solvent such as ethanol, oil or water. Extracts may be sold as tinctures or absolutes or dried and powdered. The aromatic principles of ma ...
,
essential oil An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the ...
, or flavourant. The syrup concoction, which is now very thick, can be poured into a
mold A mold () or mould () is one of the structures that certain fungus, fungi can form. The dust-like, colored appearance of molds is due to the formation of Spore#Fungi, spores containing Secondary metabolite#Fungal secondary metabolites, fungal ...
or tray to cool, or a cooling table in case of industrial mass production. When the syrup is cool enough to handle, it can be folded, rolled, or molded into the shapes desired. After the boiled syrup cools, it is called ''hard candy'', since it becomes stiff and brittle as it approaches
room temperature Room temperature, colloquially, denotes the range of air temperatures most people find comfortable indoors while dressed in typical clothing. Comfortable temperatures can be extended beyond this range depending on humidity, air circulation, and ...
.


Chemistry

Chemically, sugar candies are broadly divided into two groups:
crystalline A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macrosc ...
candies and
amorphous In condensed matter physics and materials science, an amorphous solid (or non-crystalline solid) is a solid that lacks the long-range order that is a characteristic of a crystal. The terms "glass" and "glassy solid" are sometimes used synonymousl ...
candies. ''Crystalline candies'' are not as hard as
crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macros ...
s of the mineral variety, but derive their name and their texture from their microscopically organized sugar structure, formed through a process of
crystallization Crystallization is a process that leads to solids with highly organized Atom, atoms or Molecule, molecules, i.e. a crystal. The ordered nature of a crystalline solid can be contrasted with amorphous solids in which atoms or molecules lack regu ...
, which makes them easy to bite or cut into. ''Amorphous candies'' have a disorganized crystalline structure. Hard candies are non-crystalline, amorphous candies containing about 98% (or more) solid sugar.


Medicinal use

Hard candies are historically associated with cough drops. The extended flavor release of lozenge-type candy, which mirrors the properties of modern cough drops, had long been appreciated. Many
apothecaries ''Apothecary'' () is an archaic English term for a medical professional who formulates and dispenses '' materia medica'' (medicine) to physicians, surgeons and patients. The modern terms ''pharmacist'' and, in British English, ''chemist'' have ...
used sugar candy to make their prescriptions more palatable to their customers. They are also carried by people with
hypoglycemia Hypoglycemia (American English), also spelled hypoglycaemia or hypoglycæmia (British English), sometimes called low blood sugar, is a fall in blood sugar to levels below normal, typically below 70 mg/dL (3.9 mmol/L). Whipple's tria ...
to quickly raise their low blood sugar level which, when untreated, can sometimes lead to fainting and other physical complications, and are used as part of
diabetic Diabetes mellitus, commonly known as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. Diabetes is due to either the pancreas not producing enough of the hormone insulin, or the cells of th ...
management.


Sugar-free

Hard candies and
throat lozenge A throat lozenge (also known as a cough drop, sore throat sweet, troche, cachou, pastille or cough sweet) is a small, typically medicated tablet intended to be dissolved slowly in the mouth to temporarily stop coughs, lubricate, and soothe irri ...
s prepared without
sugar Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Simple sugars, also called monosaccharides, include glucose Glucose is a sugar with the Chemical formula#Molecular formula, molecul ...
employ isomalt as a
sugar substitute A sugar substitute or artificial sweetener, is a food additive that provides a sweetness like that of sugar while containing significantly less food energy than sugar-based sweeteners, making it a zero-calorie () or low-calorie sweetener. Arti ...
, and are sweetened further by the addition of an
artificial sweetener A sugar substitute or artificial sweetener, is a food additive that provides a sweetness like that of sugar while containing significantly less food energy than sugar-based sweeteners, making it a zero-calorie () or low-calorie sweetener. Arti ...
, such as
aspartame Aspartame is an artificial non-saccharide sweetener commonly used as a sugar substitute in foods and beverages. 200 times sweeter than sucrose, it is a methyl ester of the aspartic acid/phenylalanine dipeptide with brand names NutraSwe ...
,
sucralose Sucralose is an artificial sweetener and sugar substitute. In the European Union, it is also known under the E number E955. It is produced by chlorination of sucrose, selectively replacing three of the hydroxy groups—in the C1 a ...
, saccharin, or a
sugar alcohol Sugar alcohols (also called polyhydric alcohols, polyalcohols, alditols or glycitols) are organic compounds, typically derived from sugars, containing one hydroxyl group attached to each carbon atom. They are white, water-soluble solids that c ...
, such as
xylitol Xylitol is a chemical compound with the formula , or HO(CH2)(CHOH)3(CH2)OH; specifically, one particular Stereoisomerism, stereoisomer with that structural formula. It is a colorless or white crystalline solid. It is classified as a polyalcoho ...
.


In Japan

Japanese hard candies are known as bekkō ame (鼈甲飴, lit: tortoiseshell candy). Common legends about the
yōkai are a class of supernatural entities and Spirit (supernatural entity) , spirits in Japanese folklore. The kanji representation of the word comprises two characters that both mean "suspicious, doubtful", and while the Japanese name is simply ...
Kuchisake-onna say that she can be escaped by distracting her with bekkō ame.


Names

''Boiled sweet'' is a misnomer, as sucrose (a
disaccharide A disaccharide (also called a double sugar or ''biose'') is the sugar formed when two monosaccharides are joined by glycosidic linkage. Like monosaccharides, disaccharides are simple sugars soluble in water. Three common examples are sucrose, ...
) melts fully at approximately 186 °C. Further heating breaks it into glucose and fructose molecules before it can vaporize.


See also

* Candy making *
Confectionery Confectionery is the Art (skill), art of making confections, or sweet foods. Confections are items that are rich in sugar and carbohydrates, although exact definitions are difficult. In general, however, confections are divided into two bro ...
* Gobstopper * Humbug (sweet) * Pear drop *
Mint (candy) A mint or breath mint is a food item often consumed as an after-meal refreshment or before business and social engagements to improve breath odor. Mints are commonly believed to soothe the stomach, given their association with natural byproducts ...
* Gumdrop * Pastille * Sherbet lemon


Confectioners of boiled sweets

* John Millar & Sons * Jolly Rancher (now a division of
The Hershey Company The Hershey Company, often called just Hershey or Hershey's, is an American multinational corporation, multinational confectionery company headquartered in Hershey, Pennsylvania, which is also home to Hersheypark and Hershey's Chocolate World. T ...
) * Joseph Dobson & Sons Ltd Inventer of the Yorkshire Mixtures


Notes


References

* * {{Candy Candy