Cinnamon (// SIN-ə-mən) is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods. While Cinnamomum verum is sometimes considered to be "true cinnamon", most cinnamon in international commerce is derived from related species, which are also referred to as "cassia" to distinguish them from "true cinnamon".
Cinnamon is the name for perhaps a dozen species of trees and the commercial spice products that some of them produce. All are members of the genus Cinnamomum in the family Lauraceae. Only a few of them are grown commercially for spice.
The English word cinnamon, attested in English since the 15th century, derives from the Greek κιννάμωμον kinnámōmon (later kínnamon), via Latin and medieval French intermediate forms. The Greek in turn was borrowed from a Phoenician word, which would have been akin to the related Hebrew qinnamon.
The name of cassia, first recorded in English around 1000 AD, was borrowed via Latin and ultimately derives from Hebrew q'tsīʿāh, a form of the verb qātsaʿ 'strip off bark'.
Early Modern English also used the name canel or canella, akin to the current names of cinnamon in several other European languages, which are derived from the Latin word cannella, a diminutive of canna, 'tube', from the way it curls up as it dries.
In classical times, four types of cinnamon were distinguished (and often confused):
- Cassia (Hebrew קציעה qəṣi`â), the bark of Cinnamomum iners from Arabia and Ethiopia, literally 'the peel of the plant' which is scraped off the tree
- True cinnamon (Hebrew קִנָּמוֹן qinnamon), the bark of C. verum (also called C. zeylanicum) from Sri Lanka
- Malabathrum or malobathrum (from Sanskrit तमालपत्रम्, tamālapattram, literally "dark-tree leaves"), several species including C. tamala from the north of India
- Serichatum, C. cassia from Seres, that is, China
Cinnamon has been known from remote antiquity. It was imported to Egypt as early as 2000 BC, but those who report it had come from China confuse it with cassia. Cinnamon was so highly prized among ancient nations that it was regarded as a gift fit for monarchs and even for a god: a fine inscription records the gift of cinnamon and cassia to the temple of Apollo at Miletus. Though its source was kept mysterious in the Mediterranean world for centuries by the middlemen who handled the spice trade, to protect their monopoly as suppliers, cinnamon is native to Bangladesh, Sri Lanka, the Malabar Coast of India, and Burma.
The first Greek reference to kasia is found in a poem by Sappho in the seventh century BC. According to Herodotus, both cinnamon and cassia grew in Arabia, together with incense, myrrh, and ladanum, and were guarded by winged serpents. The phoenix was reputed to build its nest from cinnamon and cassia. Herodotus mentions other writers who believed the source of cassia was the home of Dionysos, located somewhere east or south of Greece.
The Greeks used kásia or malabathron to flavour wine, together with absinth wormwood (Artemisia absinthium). While Theophrastus gives a good account of the plants, he describes a curious method for harvesting: worms eat away the wood and leave the bark behind.
Egyptian recipes for kyphi, an aromatic used for burning, included cinnamon and cassia from Hellenistic times onward. The gifts of Hellenistic rulers to temples sometimes included cassia and cinnamon as well as incense, myrrh, and Indian incense (kostos), so one might conclude that the Greeks used it for similar purposes.
The Hebrew Bible makes specific mention of the spice many times: first when Moses is commanded to use both sweet cinnamon (Hebrew: קִנָּמוֹן, qinnāmôn) and cassia in the holy anointing oil; in Proverbs where the lover's bed is perfumed with myrrh, aloes, and cinnamon; and in Song of Solomon, a song describing the beauty of his beloved, cinnamon scents her garments like 'the smell of Lebanon'. Cassia was also part of the ketoret, the consecrated incense described in the Hebrew Bible and Talmud. It was offered on the specialized incense altar in the time when the Tabernacle was located in the First and Second Jerusalem temples. The ketoret was an important component of the temple service in Jerusalem. Psalm 45:8 mentions the garments of the king (or of Torah scholars) that smell of myrrh, aloes, and cassia.
Pliny gives an account of the early spice trade across the Red Sea that cost Rome 100 million sesterces each year. Cinnamon was brought around the Arabian peninsula on "rafts without rudders or sails or oars", taking advantage of the winter trade winds. Pliny also mentions cassia as a flavouring agent for wine.
According to Pliny, a Roman pound (327 grams (11.5 oz)) of cassia, cinnamon, or serichatum cost up to 300 denarii, the wage of ten months' labour. Diocletian's Edict on Maximum Prices from 301 AD gives a price of 125 denarii for a pound of cassia while an agricultural labourer earned 25 denarii per day. Cinnamon was too expensive to be commonly used on funeral pyres in Rome, but the Emperor Nero is said to have burned a year's worth of the city's supply at the funeral for his wife Poppaea Sabina in AD 65.
Malabathrum leaves (folia) were used in cooking and for distilling an oil used in a caraway sauce for oysters by the Roman gourmet Gaius Gavius Apicius. Malabathrum is among the spices that, according to Apicius, any good kitchen should contain.
The famous Commagenum unguent produced in Commagene, in present-day eastern Turkey, was made from goose fat aromatised with cinnamon oil and spikenard. Malobathrum from Egypt (Dioscorides I, 63) was based on beef fat and contained cinnamon, as well; one pound cost 300 denarii. The Roman poet Martial (VI, 55) made fun of Romans who drip unguents, smell of cassia and cinnamon taken from a bird's nest, and look down on a man who does not smell at all.
Through the Middle Ages, the source of cinnamon was a mystery to the Western world. From reading Latin writers who quoted Herodotus, Europeans had learned that cinnamon came up the Red Sea to the trading ports of Egypt, but where it came from was less than clear. When the Sieur de Joinville accompanied his king to Egypt on crusade in 1248, he reported – and believed – what he had been told: that cinnamon was fished up in nets at the source of the Nile out at the edge of the world (i.e., Ethiopia). Marco Polo avoided precision on the topic. Herodotus and other authors named Arabia as the source of cinnamon: they recounted that a giant cinnamon birds collected the cinnamon sticks from an unknown land where the cinnamon trees grew and used them to construct their nests, and that the Arabs employed a trick to obtain the sticks. Pliny the Elder wrote in the first century that traders had made this up to charge more, but the story remained current in Byzantium as late as 1310.
The first mention that the spice grew in Sri Lanka was in Zakariya al-Qazwini's Athar al-bilad wa-akhbar al-‘ibad ("Monument of Places and History of God's Bondsmen") about 1270. This was followed shortly thereafter by John of Montecorvino in a letter of about 1292.
Indonesian rafts transported cinnamon directly from the Moluccas to East Africa (see also Rhapta), where local traders then carried it north to Alexandria in Egypt. Venetian traders from Italy held a monopoly on the spice trade in Europe, distributing cinnamon from Alexandria. The disruption of this trade by the rise of other Mediterranean powers, such as the Mamluk sultans and the Ottoman Empire, was one of many factors that led Europeans to search more widely for other routes to Asia.
When Portuguese traders landed in Ceylon (Sri Lanka), they restructured the traditional production and management of cinnamon by the Sinhalese. They established a fort on the island in 1518 and protected Ceylon as their cinnamon monopoly for over a hundred years. Later, Sinhalese held the monopoly for cinnamon in Ceylon.
Dutch traders finally dislodged the Portuguese by allying with the inland Kingdom of Kandy. They established a trading post in 1638, took control of the manufactories by 1640, and expelled the remaining Portuguese by 1658. "The shores of the island are full of it," a Dutch captain reported, "and it is the best in all the Orient. When one is downwind of the island, one can still smell cinnamon eight leagues out to sea."  The Dutch East India Company continued to overhaul the methods of harvesting in the wild and eventually began to cultivate its own trees.
In 1767, Lord Brown of the East India Company established Anjarakkandy Cinnamon Estate near Anjarakkandy in Cannanore (now Kannur) district of Kerala, and this estate became Asia's largest cinnamon estate. The British took control of Ceylon from the Dutch in 1796. However, the importance of the monopoly of Ceylon was already declining, as cultivation of the cinnamon tree spread to other areas, the more common cassia bark became more acceptable to consumers, and coffee, tea, sugar, and chocolate began to outstrip the popularity of traditional spices.
Global annual production of cinnamon and cassia amounts to 27,500–35,000 tons. Cinnamomum verum accounts for 7,500–10,000 tons of production, with the remainder produced by other species. Sri Lanka produces 80–90% of the world's supply of C. verum, but that is the only species grown there; C. verum is also cultivated on a commercial scale in Seychelles and Madagascar. Global production of the other species averages 20,000–25,000 tons, of which Indonesia produces around two-thirds of the total, with significant production in China. India and Vietnam are also minor producers.
Cinnamon is cultivated by growing the tree for two years, then coppicing it, i.e., cutting the stems at ground level. The following year, about a dozen new shoots will form from the roots, replacing those that were cut.
The stems must be processed immediately after harvesting while the inner bark is still wet. The cut stems are processed by scraping off the outer bark, then beating the branch evenly with a hammer to loosen the inner bark, which is then pried off in long rolls. Only 0.5 mm (0.02 in) of the inner bark is used; the outer, woody portion is discarded, leaving metre-long cinnamon strips that curl into rolls ("quills") on drying. The processed bark will dry completely in four to six hours, provided it is in a well-ventilated and relatively warm environment. Once dry, the bark is cut into 5- to 10-cm (2- to 4-in) lengths for sale. A less than ideal drying environment encourages the proliferation of pests in the bark, which may then require treatment by fumigation. Fumigated bark is not considered to be of the same premium quality as untreated bark.
Sri Lanka cinnamon has a very thin, smooth bark with a light-yellowish brown colour and a highly fragrant aroma. In recent years in Sri Lanka, mechanical devices have been developed to ensure premium quality and worker safety and health, following considerable research by the universities in that country, led by the University of Ruhuna.
The Sri Lankan grading system divides the cinnamon quills into four groups:
- Alba, less than 6 mm (0.24 in) in diameter
- Continental, less than 16 mm (0.63 in) in diameter
- Mexican, less than 19 mm (0.75 in) in diameter
- Hamburg, less than 32 mm (1.3 in) in diameter
These groups are further divided into specific grades. For example, Mexican is divided into M00 000 special, M000000, and M0000, depending on quill diameter and number of quills per kilogram.
Any pieces of bark less than 106 mm (4.2 in) long are categorized as quillings. Featherings are the inner bark of twigs and twisted shoots. Chips are trimmings of quills, outer and inner bark that cannot be separated, or the bark of small twigs.
A number of species are often sold as cinnamon:
- Cinnamomum verum ("true cinnamon", Sri Lanka cinnamon or Ceylon cinnamon)
- C. burmannii (Korintje, Padang cassia, or Indonesian cinnamon)
- C. loureiroi (Saigon cinnamon, Vietnamese cassia, or Vietnamese cinnamon)
- C. cassia (Cassia or Chinese cinnamon)
- Type 1 Sinhala: Pani Kurundu (පැණි කුරුඳු), Pat Kurundu (පත් කුරුඳු) or Mapat Kurundu (මාපත් කුරුඳු)
- Type 2 Sinhala: Naga Kurundu (නාග කුරුඳු)
- Type 3 Sinhala: Pani Miris Kurundu (පැණි මිරිස් කුරුඳු)
- Type 4 Sinhala: Weli Kurundu (වැලි කුරුඳු)
- Type 5 Sinhala: Sewala Kurundu (සෙවල කුරුඳු)
- Type 6 Sinhala: Kahata Kurundu (කහට කුරුඳු)
- Type 7 Sinhala: Pieris Kurundu (පීරිස් කුරුඳු)
Ceylon cinnamon, using only the thin inner bark, has a lighter brown colour, a finer, less dense and more crumbly texture, and is considered to be subtler and more aromatic in flavour than cassia. Cassia has a much stronger (and somewhat harsher) flavour than Ceylon cinnamon, is generally a medium to light reddish brown, hard and woody in texture, and thicker (2–3 mm (0.079–0.118 in) thick), as all of the layers of bark are used.
Potentially toxic coumarin is present in much lower levels in C. burmannii due to its low essential oil content. Levels of coumarin in Ceylon cinnamon are much lower than those in cassia.
The barks, when whole, are easily distinguished, and their microscopic characteristics are also quite distinct. Ceylon cinnamon sticks (quills) have many thin layers and can easily be made into powder using a coffee or spice grinder, whereas cassia sticks are much harder. Indonesian cinnamon is often sold in neat quills made up of one thick layer, capable of damaging a spice or coffee grinder. Saigon cinnamon (C. loureiroi) and Chinese cinnamon (C. cassia) are always sold as broken pieces of thick bark, as the bark is not supple enough to be rolled into quills. The powdered bark is harder to distinguish, but if it is treated with tincture of iodine (a test for starch), little effect is visible with pure Ceylon cinnamon, but when Chinese cinnamon is present, a deep-blue tint is produced.
Flavour, aroma and taste
The flavour of cinnamon is due to an aromatic essential oil that makes up 0.5 to 1% of its composition. This essential oil is prepared by roughly pounding the bark, macerating it in sea water, and then quickly distilling the whole. It is of a golden-yellow colour, with the characteristic odour of cinnamon and a very hot aromatic taste. The pungent taste and scent come from cinnamic aldehyde or cinnamaldehyde (about 90% of the essential oil from the bark) and, by reaction with oxygen as it ages, it darkens in colour and forms resinous compounds. Other chemical components of the essential oil include ethyl cinnamate, eugenol (found mostly in the leaves), beta-caryophyllene, linalool, and methyl chavicol.
Cinnamon bark is widely used as a spice. It is principally employed in cookery as a condiment and flavouring material. It is used in the preparation of chocolate, especially in Mexico, which is the main importer of cinnamon. It is also used in many dessert recipes, such as apple pie, doughnuts, and cinnamon buns as well as spicy candies, coffee, tea, hot cocoa, and liqueurs. True cinnamon, rather than cassia, is more suitable for use in sweet dishes.
In the Middle East, cinnamon is often used in savoury dishes of chicken and lamb. In the United States, cinnamon and sugar are often used to flavour cereals, bread-based dishes, such as toast, and fruits, especially apples; a cinnamon-sugar mixture is even sold separately for such purposes. It is also used in Turkish cuisine for both sweet and savoury dishes.
Cinnamon can also be used in pickling. Cinnamon bark is one of the few spices that can be consumed directly. Cinnamon powder has long been an important spice in Persian cuisine, used in a variety of thick soups, drinks, and sweets. It is often mixed with rosewater or other spices to make a cinnamon-based curry powder for stews or just sprinkled on sweet treats (most notably Shole-zard, Persian شله زرد). It is also used in sambar powder or BisiBelebath powder in Karnataka, which gives it a rich aroma and unique taste.
Cinnamon has been proposed for use as an insect repellent, although it remains untested. Cinnamon leaf oil has been found to be very effective in killing mosquito larvae. Of the compounds found in the essential oil from cinnamon leaves, cinnamyl acetate, eugenol, and anethole, and in particular cinnamaldehyde, were found to have the highest effectiveness against mosquito larvae.
Cinnamon, as a warm and dry substance, was believed by doctors in ancient times to cure snakebites, freckles, the common cold, and kidney troubles, among other ailments. However, newer studies showed that some substances in cinnamon, particularly coumarin, may cause liver damage in some sensitive people.
Along with garlic, cinnamon is used as a fish and meat preservative and in the future might be used in an inner layer of plastic as it has antimicrobial properties up to 120 °C (250 °F); cinnamon and garlic can also be used to preserve fried and deep fried foods.
Use as an alcohol flavorant
Cinnamon is a popular flavoring in numerous alcoholic beverages. Fireball Cinnamon Whisky is a cinnamon-flavoured whisky-based liqueur produced by the Sazerac Company. Somewhat similar products—Red Stag Spiced by Jim Beam, DeKuyper Hot Damn!, Gold Strike cinnamon liqueur containing gold snippets, produced by Lucas Bols, Hood River Distillers SinFire Cinnamon Whisky. and Goldschlager Cinnamon Schnapps containing gold flecks — which also have cinnamon as an ingredient in high potency liqueurs.
Other products feature cinnamon-infused vodka, including Smirnoff's Cinna-Sugar Twist. In November 2013, Beam's Pinnacle Vodka and Cinnabon teamed up to introduce their own brand of cinnamon flavored vodka, Cinnabon Vodka.[A] Yet another is Stolichnaya Zinamom Vodka.
Cinnamon brandy concoctions, called "Cinnamon liqueur" and made with distilled alcohol, are popular in parts of Greece. For those who wish to make their own "cinnamon liqueur", there is much controversy concerning the proper ingredients. In particular, some purported "cinnamon" found in "cinnamon sticks" is in fact not cinnamon, as the latter may be banned or limited in some countries due to the presence of coumarin.[B]
There are many cinnamon-infused liquors on the market.
The European Food Safety Authority in 2008 considered toxicity of coumarin, known to cause liver and kidney damage in high concentrations and a significant component of cinnamon, and metabolic effect on humans with CYP2A6 polymorphism, and confirmed a maximum recommended Tolerable Daily Intake (TDI) of 0.1 mg of coumarin per kg of body weight. The European Union set a guideline for maximum coumarin content in foodstuffs of 50 mg per kg of dough in seasonal foods, and 15 mg per kg in everyday baked foods. These limits are low enough to affect the flavour of cinnamon pastries.
Ten grams (about 2.1 teaspoons) of ground cinnamon contain:
- Energy: 103.4 kJ (24.7 kcal)
- Fat: 0.12 g
- Carbohydrates: 8.06 g (of which - fibres: 5.31 g, sugars: 0.2 g)
- Protein: 0.4 g
- Canella, a plant known as "wild cinnamon"
- Cinnamomea, a New Latin adjective meaning "cinnamon-coloured"
- Cinnamon challenge
- It "offers lip-smacking indulgence that combines the decadent flavors of cinnamon, brown sugar and rich cream cheese frosting with hints of caramel to create a taste reminiscent of warm, freshly-baked cinnamon rolls. At 70-proof, the product is smooth, five-times distilled and can be served chilled, on the rocks or mixed in festive cocktails at any brunch or get-together." "Pinnacle Vodka and Cinnabon join forces to develop an industry-first vodka innovation" (Press release). Deerfield, IL. November 21, 2013. Retrieved January 6, 2014.
- Coumarin is currently listed by the Food and Drug Administration (FDA) of the United States among "Substances Generally Prohibited From Direct Addition or Use as Human Food", according to 21 CFR 189.130 Food and Drug Administration but some natural additives containing coumarin, such as the flavorant sweet woodruff are allowed "in alcoholic beverages only" (21 CFR 172.510). In Europe, popular examples of such beverages are Maiwein (white wine with woodruff) and Żubrówka (vodka flavoured with bison grass). In the late 1970s, the latter drink disappeared from shelves in the United States, and it was thereafter renamed and reformulated for U.S. distribution. In addition to the Coumarin problem, American authorities determined that the trademark on Żubrówka brand was diluted and unenforceable, as it was a generic name, like "Aspirin". Michaels, Daniel (January 18, 2011). "Name Your Poison: How a Banned Polish Vodka Buffaloed Its Way Into the U.S.". Wall Street Journal. Retrieved January 6, 2014.
- Iqbal, Mohammed (1993). "International trade in non-wood forest products: An overview". FO: Misc/93/11 - Working Paper. Food and Agriculture Organization of the United Nations. Retrieved November 12, 2012.
- "Cassia, also known as cinnamon or Chinese cinnamon is a tree that has bark similar to that of cinnamon but with a rather pungent odour," remarks Maguelonne Toussant-Samat, Anthea Bell, tr. The History of Food, revised ed. 2009, p.437.
- "cinnamon". Oxford English Dictionary (2nd ed.). Oxford University Press. 1989.; also Harper, Douglas. "cinnamon". Online Etymology Dictionary..
- "cassia". Oxford English Dictionary (2nd ed.). Oxford University Press. 1989.; also Harper, Douglas. "cassia". Online Etymology Dictionary..
- "canella; canel". Oxford English Dictionary (2nd ed.). Oxford University Press. 1989..
- Klein, Ernest, A Comprehensive Etymological Dictionary of the Hebrew Language for Readers of English, University of Haifa, Carta, Jerusalem, p.589
- "The Indians obtained cassia from China" (Toussaint-Samat 2009, p. 437).
- Toussaint-Samat 2009, p. 437
- "Cinnamon". Encyclopaedia Britannica. 2008. ISBN 1-59339-292-3. "(species Cinnamomum zeylanicum), bushy evergreen tree of the laurel family (Lauraceae) native to Bangladesh, Sri Lanka (Ceylon), the neighboring Malabar Coast of India, and Myanmar (Burma), and also cultivated in South America and the West Indies for the spice consisting of its dried inner bark."
- Exodus 30:22-25
- Proverbs 7:17
- Song of Solomon 4:11-14
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- Pliny, nat. 14, 107f.[full citation needed]
- Graser, E.R (1940). "A text and translation of the Edict of Diocletian". An Economic Survey of Ancient Rome (first ed.) (Johns Hopkins Press). V: Rome and Italy of the Empire.
- Toussaint-Samat 2009, p. 437f.
- De re coquinaria, I, 29, 30; IX, 7
- Toussaint-Samat 2009, p. 438 discusses cinnamon's hidden origins and Joinville's report.
- Tennent, Sir James Emerson. "Account of the Island of Ceylon". Retrieved July 15, 2008.[dead link]
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- (Braudel 1984, p. 215)
- Culinary Herbs and Spices, The Seasoning and Spice Association. Retrieved August 3, 2010.
- "How to identify Real Cinnamon from Cassia". Ceylon-cinnamon.com. Retrieved August 18, 2010.
- High daily intakes of cinnamon: Health risk cannot be ruled out. BfR Health Assessment No. 044/2006, 18 August 2006
- "Espoo daycare centre bans cinnamon as "moderately toxic to liver"". Retrieved September 5, 2010.
- "Iodine test for cassia".
- Pereira, Jonathan (1854). The Elements of materia medica and therapeutics 2. p. 390.
- "Trade and Sustainable Forest Management -Impacts and Interactions". Fao.org. September 26, 2003. Retrieved August 18, 2010.
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- "Cinnamon Oil Kills Mosquitoes". www.sciencedaily.com. Retrieved August 5, 2008.
- "Coumarin in cinnamon and cinnamon-based products and risk of liver damage". American Chemical Society. May 8, 2013. Retrieved February 5, 2014.
- Ranjan, Shivendu; Dasgupta, Nandita; Saha, P; Rakshit, M; Ramalingam, C (2012). "Comparative study of antibacterial activity of garlic and cinnamon at different temperature and its application on preservation of fish". Adv. Appl. Sci. Res 3 (1): 495–501.
- Deein, Wittaya; Thepsithar, Chockpisit; Thongpukdee, Aree; Tippornwong, Suppaya (2013). "Growth of Chrysanthemum Explants on MS Medium Sterilized by Disinfectants and Essential Oils". International Journal of Bioscience, Biochemistry and Bioinformatics 3 (6): 609–613.
- Verma, Vipul; Singh, Rachana; Tiwari, Rajesh K; Srivastava, Navneet; Verma, Alpika (2012). "Antibacterial activity of extracts of Citrus, Allium & Punica against food borne spoilage.". Asian Journal of Plant Science and Research 2 (4): 503–509.
- Sah, Pankaj; Al-Tamimi, Balqees; Al-Nassri, Najat; Al-Mamari, Rahma (2012). "Effect of temperature on antibiotic properties of garlic (Allium sativum L.) and ginger (Zingiber officinale Rosc.)". African Journal of Biotechnology 11 (95): 16192–16195.
- Rakshit, Madhumita; Ramalingam, C; Yogeshwar, Divyakriti; Bedi, Jasmine (2012). "Bioedible coating of meat using garlic, cinnamon and turmeric". European Journal of Experimental Biology 2 (5): 1439–1443.
- Melendez, Elazar David (July 29, 2013). "Fireball Cinnamon Whiskey Is The Most Popular Liquor Brand You've Never Heard of". Huffington Post. Retrieved January 5, 2013.
- Barrouquere, Brett (February 14, 2012). "Fireball Whiskey vs. SinFire Whiskey: Sazerac, Inc. Sues Hood River Distillers for Cinnamon Whiskey Names". Huffington Post. Retrieved January 5, 2013.
- Farrell, Kenan (December 21, 2012). "Oregon Trademark Litigation Update --Sazerac Company v. Hood River Distillers". Oregon Intellectual Property Law. Retrieved January 5, 2014.
- Simpson, Judge Charles R. III (December 19, 2012). "Sazerac Company, Inc. v. Hood River Distillers, Inc. - Document 37 Court Description: MEMORANDUM OPINION". Retrieved January 5, 2013.
- "Smirnoff Cinna-Sugar Twist". Smirnoff. Retrieved January 6, 2014.
- "Drinks containing Stolichnaya ( Stoli ) Zinamom Cinnamon Vodka". Bar None. Retrieved January 6, 2014.
- "2013 Stolichnaya expanding in local markets in four new flavours". JSC Latvijas balzams. Retrieved January 6, 2014.
- "Where can you buy Green cinnamon brandy in the UK?". Retrieved January 6, 2014.
- "How to make cinnamon liqueur or so I thought". http://pureliqueur.com/. June 13, 2010. Retrieved January 6, 2014.
- See Fireball and discussion therein.
- National Center for Complementary and Alternative Medicine (NCCAM). Created: October 2011. Updated: April 2012 Herbs at a Glance: Cinnamon NCCAM Publication No.: 463
- Harris, Emily. German Christmas Cookies Pose Health Danger. National Public Radio. Retrieved May 1, 2007.
- Coumarin in flavourings and other food ingredients with flavouring properties - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC). doi:10.2903/j.efsa.2008.793.
- Guardian newspaper:Cinnamon sparks spicy debate between Danish bakers and food authorities, 20 December 2013
- Braudel, Fernand (1984). The Perspective of the World 3. University of California Press. p. 699. ISBN 0-520-08116-1.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Corn, Charles (1999). The Scents of Eden: A History of the Spice Trade. New York: Kodansha USA. ISBN 1-56836-249-8.
- "Cinnamon Extracts Boost Insulin Sensitivity". Agricultural Research magazine. July 2000.
- Archer, Alan W. (1988). "Determination of cinnamaldehyde, coumarin and cinnamyl alcohol in cinnamon and cassia by high-performance liquid chromatography". Journal of Chromatography A 447: 272. doi:10.1016/0021-9673(88)90035-0.
- Department of Export Agriculture, Sri Lanka
- Weerasinghe K D N, Liyanage M D S, Silva M A T D; "Present and future trends of cinnamon industry in Sri Lanka", discussion paper, University of Ruhunu, Sri Lanka. (2006)[verification needed]
- Weerasinghe K D N, "A way forward for poverty alleviation for socially deprived areas in the cinnamon industry", monograph, University of Ruhunu, Sri Lanka.[verification needed]
- Pushpitha, N. P. G. (2006). Design and construction of appropriate cinnamon processing device to intensify the cinnamon peeling industry.
- Wijesekera R O B, Ponnuchamy S, Jayewardene A L, "Cinnamon" (1975) monograph published by CISIR, Colombo, Sri Lanka
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