Fermented Cacao Beans Specification
Why Fermentation Grade Is the Most Critical Specification for Cacao Bean Buyers
Among all quality parameters for exported Indonesian cacao beans, fermentation grade is the single variable that most fundamentally determines the commercial value of a lot to a chocolate manufacturer. Unfermented or under-fermented cacao beans — regardless of their moisture content, physical size, or origin — cannot produce the complex flavor precursors that develop into chocolate's characteristic taste during roasting. A lot that passes every other specification parameter but fails the fermentation grade threshold is commercially unusable for premium chocolate production and is worth substantially less than properly fermented product of equivalent physical grade.
Indonesia is the world's third-largest cacao producer, and its beans — particularly from Sulawesi and Flores — are internationally recognized for their distinctive earthy, fruity flavor profile when properly fermented. However, Indonesia has historically faced quality challenges in the export cacao supply chain due to inconsistent fermentation practices among smallholder farmers and limited post-harvest infrastructure in remote growing regions. Understanding fermentation specification — what it means, how it is measured, and how to contract for it reliably — is the most important due diligence step for buyers sourcing Indonesian fermented cacao.
This guide covers the complete specification framework for fermented Indonesian cacao beans: fermentation grade measurement, full physical and chemical parameters, container capacity planning, packaging standards, and the documentation framework that protects B2B buyers through the procurement and shipment lifecycle. As a trusted supplier spice and agricultural commodity exporter from Indonesia, Global Spice Trade provides fermented cacao beans with full traceability and export documentation.
Fermentation Grade: Definition, Measurement, and Standards
Fermentation grade is expressed as the percentage of beans in a sample that show visible evidence of complete fermentation when cut and examined. The standard cut test method — defined by the International Cocoa Organization (ICCO) and referenced in most commercial cacao purchase contracts — involves cutting a representative sample of 300 beans lengthwise and classifying each cut bean into one of several categories based on the color and texture of the cotyledon interior.
The Cut Test: How Fermentation Is Measured
A properly fermented cacao bean shows a brown to dark brown interior when cut, with a rough, crumbly texture indicating that the cotyledon cells have been killed by acetic acid during fermentation and have begun the biochemical transformation that creates flavor precursors. The cut surface shows a well-developed brown color throughout, with a characteristic slaty or violet streak pattern depending on the degree of fermentation achieved.
Under-fermented beans show a compact, purple to slate-grey interior — the cotyledon cells remain alive and the flavor precursor chemistry has not proceeded to completion. Fully unfermented beans (called slaty beans) show a solid grey interior with no brown coloration. Both under-fermented and unfermented beans are classified as defects in the cut test and subtracted from the fermentation percentage calculation.
Indonesian export grade cacao is classified by fermentation percentage as follows: Grade A (minimum 85% fermented beans) is the standard for chocolate manufacturing and the grade specified by most European and Asian chocolate producers purchasing Indonesian cacao. Grade B (minimum 75% fermented) is acceptable for some lower-quality chocolate applications and cocoa butter/powder extraction. Below 75% fermentation is not considered commercial export grade for chocolate applications and is typically priced at a significant discount to Grade A.
Fermentation Duration and Its Impact on Quality
Proper fermentation of cacao requires 5–7 days in wooden fermentation boxes or banana leaf-lined heaps, with regular turning of the fermenting mass to ensure uniform aeration and temperature distribution throughout the pile. Fermentation generates significant heat — peak temperatures of 45–50 degrees Celsius are expected during the acetic acid fermentation phase — and this heat, combined with the acetic acid produced by the fermentation process, kills the bean embryo and triggers the enzymatic reactions that create the flavor precursors.
Under-fermentation — the most common quality failure in Indonesian smallholder cacao — typically results from fermentation periods that are too short (3–4 days rather than the required 5–7), heap sizes that are too small to maintain adequate fermentation temperature, or inadequate turning frequency that creates uneven fermentation across the mass. Farmers sometimes shorten fermentation periods to accelerate the time-to-cash cycle or because they lack adequate fermentation infrastructure, which produces the under-fermented purple beans that characterize lower-quality Indonesian cacao lots.
Over-fermentation — less common but also a defect — produces beans with excessive acidity and off-flavors from extended fermentation beyond 7–8 days. Well-managed cooperatives that monitor fermentation temperature and duration typically produce the most consistent fermentation grades and the most favorable cut test results across successive lots.
Complete Physical Specification Parameters
Physical specification for fermented cacao beans covers the parameters that can be assessed through visual inspection, cut test, and physical measurement during pre-shipment inspection. These parameters form the basis of the grading standard and the purchase contract quality definition.
Moisture Content
Maximum moisture content for exported fermented cacao beans is 7.5% by weight — the threshold established by ICCO standards and adopted in most commercial cacao purchase contracts. Cacao beans with moisture above 7.5% are at elevated risk of mold growth during ocean transit, particularly on long-haul routes to Europe or North America where transit times of 20–30 days expose the cargo to temperature cycling that can cause condensation within the container.
Indonesian cacao dried to 6.5–7.0% moisture at origin provides a comfortable safety margin for transit without reaching the critical threshold. Beans dried below 6% moisture are at risk of becoming too brittle and generating shell breakage during handling and loading, which increases the proportion of broken bean fragments that may not meet the buyer's whole bean specification. The target drying range of 6.5–7.0% balances transit stability against brittleness risk.
Moisture content should be measured using a calibrated electronic moisture meter at the time of pre-shipment inspection, with results documented in the CoA from the inspection body. Buyers who specify third-party pre-shipment inspection should require moisture measurement from a blended sample of at least 1 kg drawn from multiple bags across the lot, rather than spot measurement from a single bag, to account for moisture variation within the lot.
Bean Count per 100 Grams
Bean count — the number of beans per 100 grams of dried product — is the primary physical size indicator for cacao beans and is the commercial equivalent of screen size grading for coffee. Standard export grade Indonesian cacao is specified at a maximum of 100 beans per 100 grams, meaning an average bean weight of at least 1.0 gram. Premium grade may specify maximum 85–90 beans per 100 grams, indicating larger, heavier beans that typically reflect better crop nutrition, higher altitude growing conditions, and superior genetics.
Smaller beans — above 100 count per 100 grams — are a common quality characteristic of under-nourished or drought-stressed cacao crops and produce lower cocoa butter extraction yields per unit weight of processed cacao. Sulawesi Trinitario-type cacao varieties typically produce larger beans (80–90 count range) than flat Forastero types, which is one reason Sulawesi cacao commands a premium over some other Indonesian origins in the European fine chocolate market.
Defect Classification
Physical defects in cacao beans are classified by ICCO standards into categories that reflect the nature and severity of the quality issue. The standard defect categories relevant to Indonesian export cacao are: mouldy beans (interior mold visible on cut surface, typically maximum 3–4% for Grade A), insect-damaged beans (evidence of insect penetration or damage, typically maximum 1–2%), flat beans (beans with insufficient cotyledon mass to produce a meaningful cut test result, typically maximum 2%), germinated beans (beans where the embryo has germinated, shell cracked, maximum 1%), and broken beans or fragments (pieces less than half the whole bean size, typically maximum 1%).
The total defect count across all categories is typically specified as a maximum percentage by bean count — commonly 4–6% total defects for Grade A export cacao. Buyers with stringent quality requirements for premium chocolate applications may specify tighter total defect limits of 3% or below, which typically requires additional sorting and selection at origin and commands a price premium above standard Grade A pricing.
Shell Content
Shell content — the proportion of cacao shell (testa) to total bean weight — is a parameter that matters primarily for industrial cocoa processing buyers who are purchasing cacao beans for cocoa liquor, butter, and powder production. Higher shell content reduces the yield of cocoa nibs (the shell-free cotyledon material that is processed into cocoa liquor) per unit weight of purchased beans. Standard export grade cacao has shell content of approximately 11–14% of total bean weight. Buyers should be aware that shell content varies by variety — Criollo and Trinitario varieties tend to have thinner shells and lower shell content than Forastero — and that properly dried beans have lower apparent shell content than over-dried or brittle beans where shell separation during handling increases the apparent shell fraction.
Chemical and Laboratory Parameters
Chemical and laboratory parameters for fermented cacao beans are less extensively specified in commercial contracts than physical parameters, but are increasingly required by chocolate manufacturers who operate under stringent food safety management systems and who need to demonstrate raw material compliance for their own customer and regulatory audits.
Cocoa Butter Content
Cocoa butter content — the fat fraction of the dried cacao bean cotyledon — is typically 45–55% of the dried nib weight for well-fermented Indonesian cacao. Sulawesi Trinitario-type cacao consistently achieves cocoa butter content in the upper part of this range (50–55%), which is commercially significant for industrial buyers who extract cocoa butter for confectionery and cosmetic applications alongside cocoa powder. Cocoa butter content is measured by the Soxhlet extraction method and should be specified in the CoA for buyers whose procurement process accounts for butter yield in the cost-per-kilogram calculation.
Theobromine and Caffeine Content
Theobromine content in fermented cacao beans is typically 1.5–3.5% of dry weight, with caffeine content of 0.1–0.5%. These parameters are relevant for buyers who produce cocoa products for specific dietary markets — infant food (where theobromine limits apply), sports nutrition, or pharmaceutical cocoa extract applications. For standard chocolate manufacturing, theobromine and caffeine content are not routinely specified but can be included in the CoA scope on request.
Heavy Metals: Cadmium Compliance
Cadmium contamination in cacao is a significant and growing compliance issue for buyers importing into the European Union. EU Commission Regulation 2021/1323 established maximum cadmium limits for cocoa products: 0.60 mg/kg for cocoa powder, 0.80 mg/kg for dark chocolate, and related limits for other cocoa products. These limits are enforced at the finished product level, but chocolate manufacturers increasingly require cadmium testing at the raw cacao bean level to verify compliance risk before committing to a lot for production.
Indonesian cacao, particularly from Sulawesi, generally has lower cadmium content than South American origins (where volcanic and mineralized soils drive higher cadmium uptake). Flores-origin cacao has shown variable cadmium results depending on specific growing area soil profiles. Buyers who supply European chocolate brands with strict cadmium limits should specify maximum cadmium content at the cacao bean level in their purchase contract and require ICP-MS heavy metal testing — including cadmium — from an ISO 17025-accredited laboratory as a mandatory CoA element.
Aflatoxin and Ochratoxin A
Aflatoxin and Ochratoxin A (OTA) are mycotoxins that can develop in improperly stored or inadequately dried cacao beans. EU limits set maximum OTA at 3 ppb for cocoa beans. Properly fermented and dried Indonesian cacao from reputable cooperatives with good post-harvest infrastructure consistently achieves mycotoxin results well below these limits. Buyers who import into EU markets should require mycotoxin testing as a standard CoA element, particularly for lots sourced from regions with limited post-harvest storage infrastructure or where transit or storage delays have occurred.
Pesticide Residues
Pesticide residue compliance for cacao beans is required for EU, US, and Japanese import markets. While cacao is not among the highest-risk spice crops for pesticide residue findings — unlike ginger or pepper — the increasing scrutiny of cocoa supply chains by EU food safety authorities and the EFSA risk assessment process means that pesticide residue testing should be included in the CoA scope for all lots destined for regulated markets. Specify EU MRL-compliant pesticide screening from an ISO 17025-accredited laboratory as a standard requirement.
Container Capacity for Fermented Cacao Beans Export
Container capacity planning for fermented cacao beans is more straightforward than for lower-density commodities like dried ginger or coconut fiber because cacao beans have a relatively consistent bulk density that makes per-container fill weight predictable within a narrow range across different lots and origins.
Standard Container Fill Weights
Fermented cacao beans in standard 60 kg jute bags, floor-stacked in a 20-foot dry container, typically achieve a net product weight of 18–20 metric tons per container. The consistency of this fill weight range reflects the relatively uniform bulk density of properly dried fermented cacao beans (approximately 580–650 kg per cubic meter) and the standardized 60 kg bag size used across Indonesian cacao export. A standard 20ft dry container has an internal volume of approximately 33.2 cubic meters, which accommodates 18–20 MT of cacao at standard bulk density without approaching the container's maximum payload weight limit of approximately 21–22 MT.
A 40-foot standard dry container loaded with 60 kg jute bags of fermented cacao beans, floor-stacked, typically holds 22–24 metric tons of net product weight. The 40ft container's approximately 67.7 cubic meters of internal volume accommodates approximately twice the volume of the 20ft container, but actual net weight is constrained by stacking height limits and the internal volume of the specific container. Buyers with regular volume requirements of 20 MT or above per shipment should evaluate whether a 40ft container provides better freight economics on their specific shipping route than two 20ft containers.
GrainPro Liner for Premium Specialty Lots
For specialty and fine-flavor cacao lots — particularly single-origin Sulawesi Trinitario or Flores specialty lots destined for premium bean-to-bar chocolate manufacturers — GrainPro hermetically sealed inner bags within the jute outer are increasingly specified. GrainPro provides a moisture and oxygen barrier that protects fermentation-developed flavor volatile compounds during long-haul ocean transit, reducing the flavor degradation that can occur in standard jute bag packaging over transit periods exceeding 20 days. The additional packaging cost of GrainPro is typically USD 0.05–0.10 per kilogram and is justified by the premium pricing achievable for certified specialty cacao delivered in optimal condition.
Palletized versus Floor-Stacked Loading
Standard cacao export uses floor-stacked 60 kg jute bags, which maximizes net weight per container and is compatible with the manual unloading practices standard at most cocoa processing facilities in Asia and Europe. Palletized loading is available on request — typically using 1,200 mm x 1,000 mm wooden pallets with bags stacked to a maximum height compatible with the container internal height — and reduces net weight per container by approximately 1–1.5 MT. Most industrial cocoa buyers do not specify palletized loading for standard commercial lots, as the weight reduction is an unnecessary cost at commodity pricing levels.
Packaging Standards for Cacao Bean Export
The standard packaging for Indonesian fermented cacao beans is the 60 kg new jute bag with polyethylene inner liner. Jute is the industry-standard outer packaging for cacao export globally — it is breathable, allowing any residual moisture in the beans to escape during transit rather than condensing inside a sealed container as it would with fully waterproof packaging — while the PE inner liner provides protection against direct moisture contact and insect entry.
New jute bags should be specified in the purchase contract — second-hand or recycled jute bags that previously contained other commodities present contamination risk from residual odors or chemical residues that can taint the cacao during transit. The buyer's purchase contract should specify new jute bags from an approved supplier and should require the exporter to confirm jute bag source documentation as part of the shipping document package.
Private label and buyer-branded jute bags are available for buyers who wish to have their brand name or product identity printed on the export bags — this is particularly relevant for specialty cacao importers who re-sell Indonesian origin cacao to premium chocolate makers under their own brand and wish to present traceability and origin information directly on the packaging. Minimum order quantities for printed bags are typically 500–1,000 bags per print run; discuss with your Indonesian export partner at the time of inquiry.
Origin Comparison: Sulawesi vs Flores Fermented Cacao
Indonesia's two primary specialty cacao origins — Sulawesi and Flores — each have distinct fermentation characteristics, flavor profiles, and supply chain structures that affect the specification and procurement approach buyers should apply to each.
Sulawesi Cacao
Sulawesi, particularly South Sulawesi (Makassar region), is Indonesia's largest and most established specialty cacao origin. The predominantly Trinitario-type genetic base produces beans with larger physical size (typically 80–95 beans per 100 grams), higher cocoa butter content (50–55%), and a well-documented flavor profile of earthy, fruity, and tobacco notes when properly fermented at the 85%+ grade. Well-organized cooperative fermentation groups in South Sulawesi — particularly those working with international certification bodies — consistently achieve 85–90% fermentation grade across successive lots, making Sulawesi the most reliable Indonesian origin for consistent fermentation compliance.
South Sulawesi cacao is typically exported FOB Makassar, with transit time of approximately 3–5 days to Singapore (as transhipment hub for onward connection to Europe, the Middle East, or East Asia) or direct vessel connections to major destination ports on some routes. The well-developed export infrastructure at Makassar port supports reliable scheduling and documentation for cacao export lots.
Flores Cacao
Flores cacao — primarily from Ende and Sikka regencies in East Nusa Tenggara — is a growing specialty origin with distinctive flavor characteristics and strong interest from European fine-flavor chocolate manufacturers. Flores beans are typically smaller than Sulawesi Trinitario (90–105 beans per 100 grams for standard lots, 85–95 for premium selected lots) and have a flavor profile featuring brighter acidity, red fruit notes, and floral complexity that distinguishes them from the earthier Sulawesi profile.
Fermentation consistency in Flores is more variable than in Sulawesi due to the more fragmented cooperative structure and more remote growing areas with less developed fermentation infrastructure. Buyers sourcing Flores specialty cacao should plan for a longer quality verification process — including more comprehensive pre-shipment sampling and cup evaluation — and should work with exporters who have established relationships with specific Flores cooperatives that maintain consistent fermentation protocols. The flavor premium achievable for well-fermented Flores cacao justifies the additional supply chain management effort for buyers who serve premium bean-to-bar chocolate markets.
For a full overview of all cacao and other commodity specifications from Indonesia, visit our product specifications page covering container options, certifications, and FOB pricing for all commodity lines including cacao beans, black pepper, green coffee beans, natural rubber SIR20, and coconut fiber.
Documentation Requirements for Fermented Cacao Export
Every shipment of fermented cacao beans from Indonesia to international buyers requires a standard set of export documents that enable import clearance at destination and compliance with buyer and regulatory requirements. Understanding what documents are included as standard and what optional documentation should be requested helps buyers prepare for the import process before the vessel departs.
Standard Documentation
Standard documentation included with every cacao export shipment includes: Certificate of Origin (COO) from KADIN Indonesia or the Ministry of Trade, issued per lot and specifying the origin and HS code (1801.00); Phytosanitary Certificate issued by the Indonesian Ministry of Agriculture following inspection of the export lot; Fumigation Certificate from a licensed fumigation service provider confirming phosphine treatment to international shipping standards; Commercial Invoice and Packing List specifying the net weight, number of bags, unit price, and total FOB value; and original Bill of Lading issued by the shipping line upon container loading and vessel departure.
Optional Documentation
Optional documentation available on request — typically specified in the purchase contract at the time of order — includes: Certificate of Analysis (CoA) from SGS, Bureau Veritas, Intertek, or another accredited inspection body covering the cut test result (fermentation percentage, slaty beans, mouldy beans, total defects), moisture content, bean count per 100 grams, and any chemical parameters specified by the buyer; Halal Certificate from MUI for buyers importing into GCC markets where Halal certification is required; and Organic Certificate (USDA NOP or EU Organic) for certified organic lots from specific cooperatives in Sulawesi or Flores.
Request Fermented Cacao Beans Specification Sheet & FOB Price
Contact our export team for a complete cacao beans specification sheet, current FOB price from Sulawesi or Flores origin, and pre-shipment sample dispatch. We supply Grade A fermented, minimum 85% fermentation, with full CoA from accredited laboratory. MOQ 1 x 20ft container (~18–20 MT). As a leading supplier spice and agricultural commodities from Indonesia, we serve chocolate manufacturers and commodity traders in Europe, Asia, and the Middle East.
Request Cacao Spec Sheet via WhatsApp →Frequently Asked Questions — Fermented Cacao Beans Specification Indonesia
What is the minimum fermentation percentage for Grade A Indonesian cacao beans?
Grade A Indonesian fermented cacao beans require a minimum fermentation percentage of 85% as measured by the standard ICCO cut test method on a sample of 300 beans. This means at least 255 of the 300 cut beans must show brown to dark brown cotyledon coloration indicating completed fermentation. The remaining 15% tolerance accommodates a limited proportion of slaty, purple, and other defect categories within the overall Grade A classification. Most European chocolate manufacturers specify 85% minimum fermentation as their standard purchasing requirement for Indonesian cacao, with some premium buyers specifying 90% or above for fine-flavor applications.
How does the cut test method work for measuring cacao fermentation?
The cut test involves taking a representative sample of 300 cacao beans from across the lot, cutting each bean lengthwise with a sharp blade or guillotine cutter, and classifying the cut surface of each bean into one of the standard categories: fully fermented (brown interior), under-fermented (purple or violet interior), slaty (grey, compact interior — completely unfermented), mouldy (visible mold on cut surface), insect-damaged, or other defect categories. The fermentation percentage is calculated as the number of fully fermented beans divided by 300, multiplied by 100. This result is the primary quality indicator reported in the CoA from the pre-shipment inspection body and is the basis for grade classification and price adjustment.
What is the cadmium content of Indonesian cacao and does it comply with EU limits?
Indonesian cacao, particularly from Sulawesi, generally has cadmium content significantly below the EU MRL limits for cocoa products — typically 0.1–0.3 mg/kg at the bean level for Sulawesi origin, well below the EU finished product limits. Flores-origin cacao shows more variability by specific growing area. Buyers who supply EU chocolate brands with specific cadmium compliance requirements should specify maximum cadmium content at the cacao bean level in their purchase contract and require ICP-MS heavy metal testing from an accredited laboratory as a mandatory CoA element on every shipment. Indonesian cacao's naturally low cadmium profile is a significant advantage over South American origins where volcanic soil cadmium uptake drives higher bean-level cadmium content.
How many bags and metric tons of cacao fit in a standard 20ft container?
A standard 20-foot dry container loaded with fermented cacao beans in 60 kg new jute bags, floor-stacked, accommodates approximately 300–333 bags and achieves a net product weight of 18–20 metric tons. The exact fill weight depends on the specific container internal dimensions, the stack height achievable with 60 kg bags, and the bulk density of the specific lot. Your export team will confirm the estimated net weight and exact number of bags for your specific lot when issuing the proforma invoice. A 40ft container holds approximately 22–24 MT in the same packaging format.
What is the difference between Sulawesi and Flores fermented cacao for chocolate manufacturing?
Sulawesi cacao (primarily South Sulawesi, Trinitario-type) produces larger beans with higher cocoa butter content and an earthy, fruity, tobacco flavor profile — the classic Indonesian fine-flavor profile recognized in European specialty chocolate markets. Fermentation consistency is high from established Sulawesi cooperatives. Flores cacao produces slightly smaller beans with a brighter acidity, red fruit, and floral flavor profile that distinguishes it from Sulawesi — particularly appealing to bean-to-bar chocolate makers seeking unique flavor differentiation. Fermentation consistency in Flores requires closer supply chain management due to more fragmented cooperative structure. Both origins are commercially viable for specialty chocolate production; the choice depends on your target flavor profile and the premium your market is prepared to pay for the specific origin story.
Is GrainPro inner bag packaging available for fermented cacao beans from Indonesia?
Yes. GrainPro hermetically sealed polyethylene inner bags are available within the standard 60 kg jute outer bag for specialty and fine-flavor cacao lots. GrainPro provides moisture and oxygen barrier protection during ocean transit — particularly valuable for long-haul routes to Europe or North America where transit times exceed 20 days and the preserved flavor volatile compounds in well-fermented specialty cacao contribute meaningfully to the cup quality of the finished chocolate. The additional packaging cost is approximately USD 0.05–0.10 per kilogram and is standard practice for premium single-origin Indonesian cacao sold to fine-flavor chocolate manufacturers. Specify GrainPro packaging at the time of order inquiry.
What is the standard fumigation treatment for cacao beans exported from Indonesia?
Standard fumigation for Indonesian cacao bean exports is phosphine (PH3) treatment, applied for 72–120 hours at a concentration and temperature specified by the importing country's quarantine requirements. Phosphine fumigation is effective against insects and pest larvae that may be present in or on the cacao beans and is the treatment required by most destination country phytosanitary regulations. A Fumigation Certificate from a licensed Indonesian fumigation service provider is issued after treatment and included in the standard shipping document package. Methyl bromide fumigation — an alternative treatment — is being phased out under the Montreal Protocol in most markets and is not recommended for cacao export to EU or US destinations where methyl bromide residue limits apply to food imports.
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