Precision fermentation for cocoa
Cocoa fermentation is the process that awakens the aromatic potential of the bean. Uncontrolled temperature and pH conditions create bitterness or excessive acidity, while a reproducible protocol yields consistent Fine Cocoa. This guide shows how NFB and OriginBlok® provide the control, learning and evidence needed.
What problem does it solve?
- Variability in fermentation that makes it difficult to obtain batches with consistent quality.
- Reliance on manual methods and operator experience to evaluate the evolution of the process.
- Difficulty reproducing conditions that generated superior quality results.
- Difficulty in knowing what happens inside the cocoa mass during the different stages of fermentation.
- Lack of continuous data to compare batches and adjust protocols.
- Fragmented technological solutions poorly adapted to the real processing conditions at source.
Critical variables
Controlling these variables during cocoa fermentation is key to obtaining fine, repeatable profiles:
Temperature
40-52°C
pH
3.5-4.2 → rises
ORP
-200 to +600 mV
Duration
4-7 days
Target market
Fine Aroma Cocoa >90
Solution with Nebula
NFB Bioreactors provides automation and data at every stage of cocoa fermentation:
- Ability to standardize and perfect own protocols.
- Cumulative learning from results of previous fermentations.
- Greater ability to reproduce protocols that generate desired results.
- Greater consistency in fermentation quality between batches.
- Greater control over a determining stage for the development of the sensory potential of cocoa.
- Better decision-making ability during multi-day fermentation processes.
From physical process to differentiation
The conceptual sequence that turns every fermentation into a verifiable asset.
Physical process
The actual fermentation inside the NFB® bioreactor.
Data
Continuous sensing capturing temperature, pH, ORP, CO₂ and dissolved oxygen.
Knowledge
Historical analytics and batch comparison to learn what works.
Reproducibility
Standardized protocols that can be repeated batch after batch.
Evidence
Immutable records of origin, transformation and mass balance.
Traceability
Verifiable chain of custody with OriginBlok®.
Differentiation
Data-backed origin stories for premium buyers.
Traceability with OriginBlok®
OriginBlok® documents cocoa origin, parameters and mass balance, generating a QR certificate audited by exporters and buyers.
- Verifiable evidence of origin and transformation
- Continuity of information between actors in the chain
- Downloadable QR certificate with Nebula Score®
- Direct integration with NFB
Paso 1
GPS Farm
Paso 2
Harvest
Paso 3
NFB Fermentation
Paso 4
QR
Paso 5
Blockchain
Paso 1
GPS Farm
Paso 2
Harvest
Paso 3
NFB Fermentation
Paso 4
QR
Paso 5
Blockchain
Recommended equipment
These NFB units are designed for cocoa scales and requirements:

NFB Essential®
Temperature control for fine cocoa
From USD $8,950 EXW
Nebula Fermentation® control system + Nebula OriginBlok® validation. Includes hardware (60 liter Pilot Reactor in 304 stainless steel), firmware, software and FAT tests. Make to order project with 50% advance. SAT testing, commissioning, on-site training and other capabilities are priced separately.
- GPS
- Altitude
- Timestamp
- Temperature
- pH
- ORP

NFB Insight®
Recirculation automation and full control
From USD $16,950 EXW
Nebula Fermentation® control system + Nebula OriginBlok® validation. Includes hardware (60 liter Pilot Reactor in 304 stainless steel), firmware, software and FAT tests. Make to order project with 50% advance. SAT testing, commissioning, on-site training and other capabilities are priced separately.
- Essential® +
- CO₂
- O₂ dissolved
- Load cells
- Temp. car
- Recirculation

NFB Signature®
Science: viability of starter cultures
From USD $69,950 EXW
Nebula Fermentation® control system + Nebula OriginBlok® validation. Includes hardware (60 liter Pilot Reactor in 304 stainless steel), firmware, software and FAT tests. Make to order project with 50% advance. SAT testing, commissioning, on-site training and other capabilities are priced separately.
- Insight® +
- Active Cell Density (ACD)
- Total Cell Density (TCD)
- Real-time feasibility analysis
- End of fermentation prediction
Frequently asked questions
Does OriginBlok certify Fine Aroma Cocoa?
OriginBlok records evidence of origin, parameters and quality. The Fino de Aroma recognition is granted by certifying entities, but the Nebula certificate accelerates and supports the process.
How is adulteration detected?
If the output mass is far from what was expected or readings without GPS appear, the system marks the inconsistency in the certificate.
Can I use it without connectivity?
Yes. NFB stores data locally and anchors it to the blockchain when there is a network.
Does the NFB price include the fermenter tank?
Yes. The published prices include the Nebula Fermentation® control system + Nebula OriginBlok® validation, hardware (60 liter Pilot Reactor in 304 stainless steel), firmware, software and FAT tests. The project is make to order with 50% advance payment. SAT testing, commissioning, on-site training and other capabilities are priced separately.
Can I use the same NFB for coffee, cocoa and wine?
Each unit is configured and optimized for a crop. Although the platform is the same, the parameters, sensors and algorithms are specific for coffee, cocoa or wine.
What happens if I don't have connectivity on the farm?
NFB saves data locally and syncs when there is WiFi/LTE connectivity. Offline mode ensures that no readings are lost.
How is the Nebula Score calculated?
It is an algorithmic metric from 0 to 100 based on parameter consistency, traceability, regulatory compliance and post-fermentation data.
Want to standardize your cocoa fermentation?
Schedule a demo and we'll find the NFB that fits your cooperative or farm.