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Chocolate (see below for etymology) describes a number of raw and processed products that originate from the tropical cacao tree. It is a common ingredient in many kinds of sweets, chocolate candy, ice creams, cookies, cakes, pies, and desserts. It is one of the most popular flavours in the world.
Chocolate is made from the fermented, roasted, and ground beans taken from the pod of the tropical cacao tree Theobroma cacao native to Central America which have an intensely flavoured bitter taste. The resulting products are known as "chocolate," or in some parts of the world as cocoa
The bean products are known under different names in different parts of the world. In the American chocolate industry:
It is the solid and the fat combination, sweetened with sugar and other ingredients, that is made into chocolate bars, and which is commonly referred to as chocolate by the public.
It can also be made into the beverages (called cocoa and hot chocolate) and this was the original form used by the Aztecs, the Mayas, and the first European consumers.
Chocolate is often produced as small moulded forms in the shape of animals, people, or inanimate objects to celebrate festivals worldwide. For example, moulds of rabbits or eggs for Easter, coins or Saint Nicholas (Santa Claus)for Christmas, and hearts for Valentine's Day.
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Chocolate is an extremely popular ingredient, and it is available in many types. Different forms and flavors of chocolate are produced by varying the quantities of the different ingredients. Other flavors can be obtained by varying the time and temperature when roasting the beans.
Flavors such as mint, orange, or strawberry are sometimes added to chocolate. A chocolate bar is a bar of chocolate, frequently containing added ingredients such as peanuts, nuts, caramel, or even crisped rice. Other chocolates contain alcoholic liqueurs.
Strictly speaking, chocolate is any product based 99% on cocoa solid and/or cocoa fat. Because it is used in a vast number of by-products, any change in the cost of making it has a huge impact on the industry. Adding ingredients is an aspect of the taste. On the other hand, reducing cocoa solid content, or substituting cocoa fat with a non-cocoa one, reduces the cost of making it. There has been disagreement in the EU about the definition of chocolate.
The true etymology of the word chocolate is uncertain. Most likely it comes from the Nahuatl language indigenous to central Mexico, although it may have been influenced by the Mayan languages. One popular theory is that it comes from the Nahuatl word xocoatl (IPA /ɕɔ.kɔ.atɬ/), derived from xoco, bitter, and atl, water. On the other hand, Mexican philologist Ignacio Davila Garibi proposed that "Spaniards had coined the word by taking the Maya word chocol and then replacing the Maya term for water, haa, with the Aztec one, atl".
The chocolate residue found in a Mayan teapot suggests that Mayans were drinking chocolate 2,600 years ago, the earliest record of cacao use. The Aztecs associated chocolate with Xochiquetzal, the goddess of fertility. In the New World, chocolate was consumed in a bitter and spicy drink called xocoatl, often seasoned with vanilla, chile pepper, achiote (which we know today as annatto) and pimento. Xocoatl was believed to fight fatigue, a belief that is probably attributable to the theobromine content. Chocolate was an important luxury good throughout Pre-Columbian Mesoamerica, and cocoa beans were often used as currency. Other chocolate drinks combined it with such edibles as maize gruel (which acts as an emulsifier) and honey.
The xocoatl was said to be an acquired taste. Jose de Acosta, a Spanish Jesuit missionary who lived in Peru and then Mexico in the later 16th century, wrote of it:
Christopher Columbus brought some cocoa beans to show Ferdinand and Isabella of Spain, but it remained for Hernando de Soto to introduce it to Europe more broadly.
The first recorded shipment of chocolate to the Old World for commercial purposes was in a shipment from Veracruz to Seville in 1585. It was still served as a beverage, but the Europeans added sugar to counteract the natural bitterness, and removed the chili pepper. Improvements to the taste meant that by the 17th century it was a luxury item among the European nobility.
At the end of the 18th century the first solid chocolate we eat today was created in Turin. This chocolate was sold in large quantities from 1826 by Pierre Paul Caffarel. In 1819, F. L. Cailler opened the first Swiss chocolate factory. In 1828, Dutchman Conrad J. van Houten patented a method for extracting the fat from cocoa beans and making powdered cocoa and cocoa butter. Van Houten also developed the so-called Dutch process of treating chocolate with alkali to remove the bitter taste. This made it possible to form the modern chocolate bar. It is believed that the Englishman, Joseph Fry made the first chocolate for eating in 1847, followed shortly after by the Cadbury brothers.
Daniel Peter, a Swiss candle-maker, joined his father-in-law's chocolate business. In 1867 he began experimenting with milk as an ingredient. He brought his new product, milk chocolate, to market in 1875. He was assisted in removing the water content from the milk to prevent mildewing by a neighbor, a baby food manufacturer named Henri Nestlé. Rodolphe Lindt invented the process called conching, which involves heating and grinding the chocolate solids very finely to ensure that the liquid is evenly blended.
In sufficient amounts, the theobromine found in chocolate is toxic to animals such as horses, dogs, parrots, voles, and cats (kittens especially) because they are unable to metabolize the chemical effectively. If they are fed chocolate, the theobromine will remain in their bloodstream for up to 20 hours, and these animals may experience epileptic seizures, heart attacks, internal bleeding, and eventually death. Medical treatment involves inducing vomiting within two hours of ingestion, or contacting a veterinarian.
A typical 20 kg dog will normally experience intestinal distress after eating less than 240 g of milk chocolate, but won't necessarily experience bradycardia or tachyarrythmia unless it eats at least a half a kilogram of milk chocolate. If it does not expel the chocolate from its system because of the fat and sugar content, then it would have a 50% chance of surviving after eating 5 kg. Dark, sweet chocolate has about 50% more theobromine and thus is more dangerous to dogs. According to the Merck Veterinary Manual, approximately 1.3 g of baker's chocolate per kilogram of a dog's body weight (0.02 oz/lb) is sufficient to cause symptoms of toxicity. For example, a typical 25 gram baker's chocolate bar would be enough to bring out symptoms in a 20 kg dog.
Recent studies have shown that cocoa or dark chocolate has potent health benefits for people. Dark chocolate is full of the flavonoids epicatechin and gallic acid, which are antioxidants that help protect blood vessels, promote cardiac health, and prevent cancer. It also has been effectively demonstrated to counteract mild hypertension. In fact, dark chocolate has more flavonoids than any other antioxidant-rich food such as red wine, green and black tea, and blueberries. There has even been a fad diet named "Chocolate diet" that emphasises eating chocolate & cocoa powder in capsules. However, consuming milk chocolate or white chocolate, or drinking milk with dark chocolate appears to largely negate the health benefits. Chocolate is also a calorie-rich food, with a high content of saturated fat, so daily intake of chocolate also requires reducing caloric intake of other foods.
Mars, Incorporated, a Virginia-based candy company, spends millions of dollars each year on flavanol research. The company is in talks with pharmaceutical companies to license drugs based on synthesized cocoa flavanol molecules. According to Mars-funded researchers at Harvard, the University of California, and European universities, cocoa-based prescription drugs could potentially help treat diabetes, dementia and other diseases. [1]
Current research indicates that chocolate is a weak stimulant due to its content of theobromine.[2] However, chocolate contains too little of this compound for a reasonable serving to create effects in humans that are on par with a coffee buzz. Aptly spoken by the pharmacologist Ryan J. Huxtable, "... [chocolate is] more than a food but less than a drug". However, chocolate is a very potent stimulant for dogs and horses; its use is therefore banned in horse-racing. Some chocolate products contain synthetic caffeine as an additive.
Chocolate also contains small quantities of the endogenous cannabinoid anandamide and the cannabinoid breakdown inhibitors N-oleoylethanolamine and N-linolenoylethanolamine. Anandamides are produced naturally by the body, in such a way that their effects are extremely targeted (compared to the broad systemic effects of drugs like tetrahydrocannabinol) and relatively short-lived. In experiments N-oleoylethanolamine and N-linolenoylethanolamine interfere with the body's natural mechanisms for breaking down endogenous cannabinoids, causing them to last longer. However, noticeable effects of chocolate related to this mechanism in humans have not yet been demonstrated.
Part of the pleasure of eating chocolate is ascribed to the fact that its melting point is slightly below human body temperature and, therefore, melts in the mouth. Chocolate also releases serotonin in the brain which produces feelings of pleasure in a similar way to sunlight. Although chemicals are released in certain areas of the brain, chocolate does not contain a significant amount of these chemicals so as to harm or affect human behaviour.
Research has shown that heroin addicts tend to have an increased liking for chocolate because it triggers dopamine release in the brain - an effect, albeit a legal one, similar to that of opium. See also: chocoholic.
Romantic lore commonly identifies chocolate as an aphrodisiac. The reputed aphrodisiac qualities of chocolate are most often associated with the simple sensual pleasure of its consumption. More recently suggestion has been made that serotonin and other chemicals found in chocolate, most notably phenethylamine, can act as mild sexual stimulants. While there is no firm proof that chocolate is indeed an aphrodisiac, giving a gift of chocolate to one's sweetheart is a familiar courtship ritual.
There is a popular belief that the consumption of chocolate could cause acne. Such an effect could not be shown in scientific studies as the results are inconclusive.[3]
Chocolate has one of the highest concentrations of lead among all products that constitute a typical Westerner's diet. This is thought to happen because the cocoa beans are mostly grown in the developing countries such as Nigeria. Those countries still use tetra-ethyl lead as a gasoline additive and, consequently, have high atmospheric concentrations of lead. According to U.S. Food and Drug Administration, levels of lead in chocolate are sufficiently low that even people who eat large amounts of chocolate every day are not at risk of any adverse effects.
There are three main varieties of cacao beans used in chocolates. The most prized, rare, and expensive is Criollo, the native bean of Venezuela. Criollos are less bitter and require shorter roasting periods to develop aroma. Forastero is a large group of wild and cultivated cacaos, probably native from the Amazon basin, significantly hardier and of less quality than Criollo. Trinitario, a natural hybrid of Criollo and Forastero, originated in Trinidad after an introduction of (Amelonado) Forastero to local Criollo crop.
Nearly all cacao produced over the past five decades is of the Forastero or lower-grade Trinitario varieties. The share of higher quality Criollos and Trinitarios (so called flavour cacao) is just under 5% per annum [4].
Firstly, the cacao pods, containing cacao beans, are harvested. The pods are crushed and left to ferment for about six days, after which the beans are split from the pods and dried. Fine chocolate can be produced by drying the beans for about 7 days in the sun. Accelerated or artificial drying is quicker but produces inferior quality chocolate, such as that used in most mass produced products.
The beans are then roasted, graded and ground. Cocoa butter is removed from the resulting chocolate liquor either by being pressed or by the Broma process. The residue is what is known as cocoa powder.
Chocolate liquor is blended with the butter in varying quantities to make different types of chocolate or couverture. The basic blends of ingredients, in order of highest quantity of cocoa liquor first, are as follows. Note that since American chocolates have a lower percentage requirement of cocoa liquor for dark chocolate, some dark chocolate may have sugar as the top ingredient.
Usually, an emulsifying agent such as soya lecithin is added, though a few manufacturers prefer to exclude this ingredient for purity reasons and to remain GMO-free (soya is a heavily genetically modified crop), sometimes at the cost of a perfectly smooth texture. Please note that the texture is also heavy influenced by processing, specifically conching. The more expensive chocolates tend to be processed longer and thus have a smoother texture and "feel" on the tongue, regardless of whether emulsifying agents are added.
Different manufacturers develop their own 'signature' blends based on the above formulas but varying proportions of the different constituents used.
The finest plain dark chocolate couvertures contain at least 70% cocoa (solids + butter), whereas milk chocolate usually contains up to 50%. High quality white chocolate couvertures contain only about 33% cocoa. Inferior and mass produced chocolate contains much less cocoa (as low as 7% in many cases) and fats other than cocoa butter. Some chocolate-makers opine that these "brand name" milk chocolate products can not be classed as couverture or even as chocolate, because of the low or virtually non-existent cocoa content.
The penultimate process is called conching. A conche is a container filled with metal beads, which act as grinders. The refined and blended chocolate mass is kept liquid by frictional heat. The conching process produces cocoa and sugar particles smaller than the tongue can detect, hence the smooth feel in the mouth. The length of the conching process determines the final smoothness and quality of chocolate. High quality chocolate is conched for about 72 hrs, lesser grades about 4–6 hours. After the process is complete, the chocolate mass is stored in tanks heated to approximately 45–50°C until final processing.
The final process is called tempering. Since cocoa butter exhibits a polymorphous or unstable crystal formation, the mass must be cooled very carefully to encourage the crystals to stabilise in the right order to produce the desired properties of snappy bite, tender melt and a good gloss in the finished product. This is achieved by the tempering process. Firstly, the mass is cooled in stages from about 45 °C to about 27 °C and rewarmed to about 37 °C followed by cooling down to its solid state.
The chocolate is then ready for sale as couverture (used for coating chocolates, biscuits and other coated products) or as the finished product, such as solid chocolate bars.
Chocolate is very sensitive to temperature and humidity. Ideal storage temperatures are between 15 and 17 degrees Celsius (59 to 63 degrees Fahrenheit), with a relative humidity of less than 50%. Chocolate should be stored away from other foods as it can absorb different aromas. Ideally, chocolates are packed or wrapped and then placed in proper storage areas with the correct humidity and temperatures.
It can be difficult to identify vegan chocolate. Milk chocolate does not qualify because of the added milk, but even chocolate labeled as "dark" may contain milk ingredients. For example, Hershey's Special Dark contains milk. Unless the chocolate is specifically labelled as vegan, another complication for strict vegans is that the sugar used in a particular chocolate may have been processed with bone char.
Popular or historically significant chocolate makers include:
Candy is often used as a synonym for the more general term confectionery in North America, whereas the word has become archaic in most parts of the United Kingdom and survives today almost exclusively in the term "candy floss". In some areas, notably Scotland, "candy" is generally taken to mean confectionery made from crystallized sugar. In the United Kingdom in general, a piece of confectionery is referred to as a sweet. In Australian English, all such confections are collectively referred to as lollies.
Candies are prepared by dissolving sugar in water or milk to form a syrup, and boiling it until it starts to caramelize. Depending on the solvent and the end result of the process, the product may be called candy, caramel, toffee, fudge, praline, tablet or taffy. The recipe used also predicts how hard, soft, chewy or brittle the end result should be.
The eventual texture of candy depends on the temperature to which the sugar solution is boiled, since the presence of a solute in a liquid tends to elevate the boiling point of the liquid. Increasing the sugar content will also raise the boiling point. As the syrup is heated, it boils, which causes the sugar concentration in the syrup to increase due to evaporation of the water, which raises the boiling point even further. The relationship between the boiling point and the sugar concentration is predictable, and so heating the syrup to a particular temperature ensures a particular sugar concentration with some accuracy. In general, higher temperatures — which imply greater sugar concentrations — result in hard, brittle candies, and lower temperatures result in softer candies. These "stages" of cooking candy have been named and correlated with the cooking temperatures, and is frequently specified in recipes:
This unusual nomenclature derives from the process used to test the syrup in times before thermometers became affordable. A small spoonful of the hot syrup was dropped into a glass of cold water. The characteristics of the resulting lump of sugar could then be used to determine the concentration of the syrup. "Thread" stage produces long strings of hardened sugar, while "ball" stages result in a smooth lump with the corresponding hardness described. The "crack" stages create a ball of candy so brittle that the rapid cooling from the water literally causes it to crack. This method is still used today in some kitchens; however, a thermometer is much more accurate.
Once the syrup reaches 340°F or higher, the sucrose molecules break down into many simpler sugars, creating an amber-colored substance known as caramel. This should not be confused with caramel candy, although it is the candy's main flavoring agent.