Cocoa Origins Compared: Ghana, Ecuador and Madagascar
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Origin leaves a real trace in chocolate, but it isn’t the only thing you taste, and often not the strongest. Ghana, Ecuador and Madagascar turn up on a lot of dark bars. They grow different trees, trade their beans in different ways and carry different flavor reputations, and an origin label can promise less than it seems. More on tasting is in the taste section.
The research on origin and flavor is mostly aroma chemistry and small tasting panels. Country figures come from the International Cocoa Organization, or ICCO, FAO and national bodies, each dated, because they get revised.
Does origin really change taste?
Yes, measurably. But it rarely acts alone, and the maker’s processing can outweigh it. None of the studies below puts a number on how much of a bar’s flavor comes from origin.
The clearest evidence from real bars comes from a 2016 Dutch study by Acierno and colleagues of 90 dark chocolates bought in stores. Measuring their aroma compounds, the researchers found the profiles “strongly affected by the processing applied by the different brands”, while the botanical and geographical origin of the beans still showed through. Two bars from one origin made by different makers can end up further apart than two origins from the same maker.
Hold the processing constant and the tree comes forward. In a controlled pollination study by Sukha and colleagues, all the beans were fermented, dried and made into liquor the same way, then scored by a trained panel over two crop years. Flavor quality was “determined principally by the genotype of the female parent”. The finding concerns tree varieties rather than countries.
Where the beans ferment can matter as much as what they are. An Australian study by Wang and Bekker found that nibs fermented at the same facility had more similar aroma chemistry than nibs of the same genotype fermented at different sites under the same protocol. The authors call the result exploratory and ran no tasting, so it speaks to chemistry only.
Then there’s the person eating. In a 2019 study by Acierno and colleagues that measured the aroma reaching ten people’s noses as they ate ten chocolates, differences between people were larger than differences between the beans, though the bean variety still came through consistently. How to taste chocolate covers why tasters disagree.
What shapes flavor besides origin: genetics, fermentation, roast, recipe
A 2020 review by Santander and colleagues separates factors that are hard to control, “the genotype and the agroecological niche”, from the postharvest steps: fermenting and drying on the farm, then roasting and the rest at the factory. It calls those steps critically important, because that’s where cocoa flavor forms.
Even the official definition of fine flavor cocoa doesn’t credit place alone. Article 1 of the International Cocoa Agreement 2026 says it results from the interaction of “a particular genetic composition”, “favourable growing conditions in a given environment/terroir”, plantation management, harvest and postharvest practices, and the bean’s chemical and physical integrity.
Fermentation
On the farm, the beans ferment in their pulp for several days, and that’s where the chemistry of chocolate flavor starts, as how chocolate is made explains. Small choices count. A study of heap fermentation in Ghana by Camu and colleagues found that turning the heaps let in more air, raised acetic acid and gave the chocolate a more sour taste. One of its authors and its tasting panel came from a chocolate company.
Roast
Origin and roast interact. A Spanish group led by Torres-Moreno made dark chocolate from Ghana and Ecuador beans under the same conditions, varying only roasting and conching time. In their 2012 study, a long roast made 95 consumers like the Ghana chocolates less and made no difference to the Ecuador ones.
A 2021 follow-up found that the effect of roasting time on aroma compounds depended on the origin. Each study used one batch of beans per origin, so the results say little about Ghana beans in general. They do show why makers set a roast profile for each origin.
Processing can even move beans toward another origin’s profile. Researchers in Ghent, in papers led by Hinneh in 2019 and 2020, varied pod storage and roasting temperature for Ghanaian bulk-grade beans and compared the results with chocolates made from commercial cocoa liquor of six origins, Ecuador, Ghana and Madagascar among them. Their expert panel found the treatments shaped the flavor “irrespective of the origin”, and the authors concluded that diverse profiles, “even towards ‘fine’ flavor”, can be made from bulk beans.
Growing conditions
Differences in the field are real, but they don’t always survive to the bar. In Côte d’Ivoire, one hybrid grown under shade trees and in full sun across five regions, then fermented and dried the same way, showed differences in the beans’ aroma compounds in three regions and none in the finished chocolates, according to Amien and colleagues. In Indonesia, three clones grown in four places did taste different to a panel of three, and Sari and colleagues found genotypes described as non-aromatic producing aromatic beans in two of them.
Two widely cited reviews, by Afoakwa and colleagues in 2008 and Kongor and colleagues in 2016, say the share of soil, tree age and climate in final flavor is still unclear. Terroir in cocoa is a reasonable idea whose mechanism hasn’t been measured.
The maker’s recipe
Sugar, the cocoa percentage, how long to refine and conch: all the maker’s decisions. How a small maker chooses beans and works them into a bar is in the bean-to-bar process. A Ghent doctoral thesis by Rottiers adds one more data point. It analyzed fourteen cocoa liquors from ten single origins and found they grouped by quality, bulk or fine, rather than by country, although country and genetic origin both affected the aroma fingerprint. The grouping came from an electronic nose, without a tasting panel.
Ghana
Ghana is one of the largest cocoa producers in the world. In its May 2025 bulletin, the ICCO estimated Ghana’s 2023/24 crop at 449,000 metric tons, by our arithmetic about a tenth of the world total in the same bulletin. Its February 2025 bulletin had put the same crop at 530,000 metric tons.
FAO’s figure for 2024 is also 530,000 metric tons, flagged as taken from an outside organization (FAOSTAT data file of December 2025). Newer country figures aren’t public: in its August 2026 quarterly bulletin, the ICCO said it had “temporarily withheld” production data for the 2025/26 season.
The trade runs through a state board, COCOBOD, set up by ordinance in 1947. Licensed buying companies buy the beans from farmers, the board’s Quality Control Company inspects, grades and seals them, and its Cocoa Marketing Company sells them abroad. The board’s cocoa specification says Ghana cocoa goes through at least three stages of quality inspection before it ships. Most of the trees are hybrids. COCOBOD’s history of the crop credits Tetteh Quarshie with bringing Amelonado pods back from Fernando Po in 1879. Amelonado is now rare in the field. A survey of 731 farmers in six regions, published in a 2018 doctoral thesis by Kongor, found 57.7% planting the hybrid bred by Ghana’s cocoa research institute, a cross of Upper Amazon and Amelonado parents. Only 0.4% still grew Amelonado.
Fermentation is mostly done in heaps. COCOBOD says the beans ferment for six or seven days with two or three turnings, then dry in the sun for about another week. Ghana is new to the ICCO’s list of fine flavor exporters. It wasn’t on the December 2020 list. As of the April 2024 Council decision, carried into the International Cocoa Agreement 2026, which entered into force on 1 October 2026, Ghana is listed in Annex C of the agreement with the footnote “a/” instead of a percentage. The footnote reads: “Fine flavour cocoa bean exports are present, but the Panel of Experts is at present not able to evaluate and determine a percentage”. In 2023 the ICCO’s expert panel welcomed “Ghana’s first technical information dossier” and asked for more detail on traceability and postharvest practices, according to the panel’s 2023 meeting report. The Council is due to review the list at its first session under the new agreement.
Those list percentages measure something narrower than they seem. Each is a panel’s judgment of what share of a country’s cocoa bean exports is fine flavor, worked out partly from trade statistics on volume, price and destination. The figure doesn’t grade every bag or bar from that country. The ICCO itself says that objective, practical indicators separating fine beans from bulk ones “do not exist”.
In flavor research, Ghana is the standard bulk reference. One paper on tasting methods by Sukha and colleagues used “Ghana beans (normally classified as ‘bulk’)” as its baseline against fine beans from Trinidad. The same board that grades them calls Ghana “the producer of the best quality bulk cocoa”.
The familiar “classic chocolate” description comes from Ghana’s own institutions. COCOBOD says well-fermented Ghana beans “diffuse the best natural chocolate aroma”, and its research institute writes of “the rich, intense and unique chocolate flavor” of Ghana cocoa. That is a producer describing its own product. A 2024 systematic review by Putri and colleagues cites a study that found Ghanaian and Ivorian chocolates “predominantly nutty”.
Ecuador
The ICCO estimated Ecuador’s 2023/24 crop at 419,000 metric tons (May 2025 bulletin). FAO’s official figure for 2024 is 403,699 metric tons (FAOSTAT, data file of December 2025).
Ecuador’s own variety is Nacional. A 2012 genetic study by Loor Solórzano and colleagues describes it as having become known worldwide “due to its strong floral so-called ‘Arriba’ aroma, exclusively generated by Nacional cocoa beans”. Nacional was the only cacao planted in Ecuador until the early 1890s. From 1910, two fungal diseases, witches’ broom and frosty pod, devastated the native plantations, foreign cacao was brought in, and today’s farms hold “a large genetic admixture” of the two.
The Ghent thesis cited above goes further: ancient Nacional is nearly extinct, replaced step by step by Nacional hybrids and high-yielding, disease-resistant cultivars. The ICCO counts Nacional as a Forastero-type tree that nonetheless produces fine flavor cocoa, an exception to its usual rule that fine beans come from Criollo or Trinitario trees. In practice, “Nacional” on a wrapper today most likely means Nacional-type cacao or its hybrids.
“Arriba” is a place name before it’s a flavor word. The 2012 study traces it to the upper waters of the Guayas river’s tributaries, the historic growing area in the provinces of Guayas, Los Ríos and Manabí. Ecuador registered “Cacao Arriba” as a national designation of origin. According to a 2018 paper by Quintana Lombeida and Aguilar Herrera, its certification covers fine aroma cocoa from anywhere in the national territory. The authors also judged that the designation made little difference to farmers and isn’t, for international buyers, evidence of sensory traits that guarantee the origin.
The variety that complicates all of this is CCN-51. “Over the past two decades, ‘CCN 51’ has become one of the most planted cultivars in Ecuador, mainly as a result of its high productivity and disease resistance,” a 2014 genetic study by Boza and colleagues says, adding that mixing it with Nacional beans “has become common practice, reducing overall bean quality and decreasing value”. In the Ghent work, Nacional and CCN-51 grown in the same region and processed in the same place gave clearly different results. Sensory analysis of the liquors separated “the fruity and acid flavors” of the Nacional-type cultivars from “the bitter, astringent and off-flavor attributes of CCN51”, and CCN-51 beans held high levels of rancid-smelling acids.
On the same ICCO list, Ecuador stands at 75%: three quarters of its cocoa bean exports count as fine flavor. In 2023 Ecuador asked for 98.47%. The ICCO panel asked how much of the export and planted area was CCN-51 and recommended that the country “stop marketing cocoa by variety but rather, like other cocoa producing countries, by geographical area or organoleptic profile”. Its review committee later found that keeping Ecuador at 75% “is an accurate outcome”, the 2023 panel report says.
Flavor descriptions for Ecuador start with flowers. The 2024 systematic review found Nacional described with floral, fruity, nutty, spicy and malty notes, and lists descriptors such as orange blossom, jasmine and rose from the studies it covers. Those notes belong to Nacional. Unless the wrapper names the variety, you have no way to know which tree is in the bar.
Madagascar
Madagascar is a small producer. FAO’s official figure for 2022 is 10,234 metric tons. For 2023 and 2024 it shows 20,000 and 21,000 metric tons, both flagged as figures from an outside organization (FAOSTAT, data file of December 2025). Even the higher number is well under 1% of world output. In 2023 the ICCO’s expert panel asked Madagascar for details on “significant increases observed in the production areas”, and the country’s cocoa council described dumping practices that had distorted export price statistics.
“Cocoa production in Madagascar is concentrated in the Sambirano valley within the Ambanja district, where most cacao plantations are small farms,” a 2021 genetic study by Li and colleagues says. The same paper recounts that cacao with a typical Criollo appearance arrived in the late 1800s, probably from Réunion, and was grown in the Sambirano. A second introduction in the early 1900s was believed to be a Trinitario type.
That history is why Madagascar is often sold as “Criollo”. The genetics don’t support the label. The 2021 study tested 40 trees chosen by farmers on four traditional farms in the Sambirano and sorted them into three groups: Criollo, Trinitario and Amelonado. Amelonado was the largest group and Criollo the smallest. Forty trees on four farms don’t describe the whole country, but they’re enough to show that Madagascar cocoa carries Criollo heritage alongside other types.
The ICCO rates Madagascar at the top of its scale. On the same list it stands at 100%: all of its cocoa bean exports count as fine flavor. The panel kept Madagascar as an exclusive fine flavor exporter “based on the very good and consistent quality of the beans as well as the high market demand for this origin”.
In the trade, Madagascar bars are commonly described as bright and acidic, with red fruit. We found no peer-reviewed study that backs it, and the 2024 systematic review on fine flavor cocoa includes no study of Madagascar beans. The closest thing is a 2014 master’s internship report by Chen-Yen-Su, in French, hosted by the French research center CIRAD and not peer reviewed. Its eleven judges found red fruit and sweetness in liquor made from Sambirano beans fermented for six days. Liquor from unfermented beans was linked instead with astringency, bitterness and a “pharmaceutical” note. In that one small study, the red fruit came with fermentation, which fits the evidence above: origin offers a potential, and processing decides what reaches the bar.
How to read an origin label
An origin on a wrapper is a claim about where the beans grew, and the main legal requirement behind it is that it mustn’t mislead. Terms like “single origin”, “single estate” and “vintage” aren’t defined in the EU or US food texts we checked. What follows is a reading of those texts, not legal advice.
In the EU, food information must not mislead, including “as to … country of origin or place of provenance”, under Article 7 of Regulation (EU) No 1169/2011. Origin becomes mandatory where leaving it out could mislead (Article 26(2)). When a label gives the food’s origin but the main ingredient comes from elsewhere, the label must also give the ingredient’s origin, or say that it’s different (Article 26(3)), in the form set by Regulation (EU) 2018/775 since 1 April 2020. The EU chocolate directive itself has no origin rule. So a bar made in Belgium with “Madagascar” on the front must not mislead about the beans, but EU law doesn’t say what “single origin” covers.
In the US, a food is misbranded under 21 U.S.C. 343(a) if its labeling “is false or misleading in any particular”. The chocolate standards in 21 CFR Part 163 say nothing about origin. Imported goods must be marked with their country of origin under 19 U.S.C. 1304, but for customs purposes that’s where the product was made or substantially transformed, as 19 CFR 134.1(b) defines it. So a bar made in Switzerland from Ecuadorian beans can carry “Made in Switzerland” and “Ecuador” on the same wrapper, and both can be true.
A few things on a label tell you more than others:
- A region, cooperative or farm name narrows the claim further than a country name. None of these levels is legally defined, so read them as the maker’s own description.
- A harvest year is useful when it’s there, but “vintage” has no legal meaning in either set of rules.
- On an Ecuadorian bar, “Arriba” doesn’t pin down one valley, since the designation covers the whole country, and “Nacional” most likely means Nacional-type hybrids. A named variety still tells you more than none.
- “Fine flavor” on a wrapper isn’t a certified term. The ICCO list rates a country’s exports, and says nothing about a particular bar.
The percentage is a separate claim about the recipe, explained in types of chocolate.
Where to start if you want to try origins
Start with several origins from one maker. Because processing marks the bar so strongly, that comparison, at the same or a similar cocoa percentage, leaves the beans as the main thing changing. Bars of one origin from different makers show the opposite: how much the maker matters.
Keep the percentages close. In a 2018 study of dark bars by Oberrauter and colleagues, the percentage barely affected bitterness in single-origin bars, where variety and growing conditions mattered more. A different percentage still means a different amount of sugar.
Taste them side by side, in small pieces, with water in between, and ideally without knowing which is which. Write down what you notice before you read the wrapper’s tasting notes. The full method is in how to taste chocolate.
For an independent judgment of the beans themselves, two programs judge cacao.
Cacao of Excellence, formerly Cocoa of Excellence, holds awards every two years for cacao producers. According to its FAQs, every accepted sample is made into cocoa mass and judged blind, and the best 50 are made into dark chocolate by its own lab with one recipe for all and judged blind again by about 35 professionals, who get no information about origin or region. With the recipe fixed, its results come closer to a clean origin comparison than any shelf of bars. It’s led by the Alliance of Bioversity International and CIAT, part of the CGIAR research network, and several chocolate companies were among its founding supporters. The awards name producers and farms.
The Heirloom Cacao Preservation Fund, a US nonprofit founded in 2012, gives an “Heirloom” designation to cacao that passes a tasting panel, a genetic analysis and a site visit, which can be virtual, according to the fund’s page for farmers. On its own count, it has certified more than 24 designations in more than 12 countries.
Neither program certifies a finished bar, so check any award or Heirloom claim on a wrapper at the program’s own site.
Sources and open questions
These questions are still open:
- A study that puts Ghana, Ecuador and Madagascar beans through the same fermentation and roast and has a trained panel describe the results. The Ghent work under Roast comes closest.
- An independent flavor description for Ghana from a body such as the ICCO or a judged cocoa competition.
- An official, dated figure for how much of Ecuador’s crop is CCN-51. Numbers circulate in the trade press but don’t trace to a primary document.
- The year Ecuador registered “Cacao Arriba”. The 2018 paper gives two different years, and the registration itself wasn’t available to read.
- What lies behind the jump in Madagascar’s FAO figures from 2022 to 2023.
- A customs ruling on a chocolate bar made in one country from beans grown in another.
- Whether any Heirloom designations are in Ghana, Ecuador or Madagascar.
The second review on the terroir question is Kongor et al. (2016). The ICCO’s fine or flavor cocoa page carries the same country list as Annex C. The Hinneh abstracts don’t describe the origin chocolates.
We read the Wang and Bekker paper in full. For the Acierno, Sukha, Santander, Torres-Moreno, Hinneh, Amien, Sari, Afoakwa, Kongor (2016) and Boza papers and the Rottiers thesis, we read only the abstracts or summaries.