Field Data. Independent Validation.

Impact &
Validation

Cut and graded by an independent third party. 8 sites, 5 tonnes fermented.

Independent Cut Test

The cut test

The cut test is how the industry judges fermentation: slice open 100 beans, count and grade them. Fully brown is the target colour. Fissuring — the cracked internal structure of a well-fermented bean — is graded 1 to 4, with 4 the highest.

Four monitored batches and four fermented traditionally were sent to a third-party professional cacao bean grading authority. GOcacao did not conduct or supervise the evaluation.

GOcacao Batch 87.25

Fully brown beans per sample

Traditional Mean 72.5

Fully brown beans — traditional method

Beans per 100 — a 20.3% improvement.

Evaluation Protocol

Each bean in the sample is cut and classified — fully brown, partially fermented, or defective — and fissuring is graded. The fully brown count and the grade 4 fissuring count are the two indicators buyers, exporters and craft producers use internationally.

EVALUATOR — Third-party cacao bean grading authority
METHOD — Standard cut test, 100 beans per batch
SAMPLE — 4 monitored vs 4 traditional
FULLY BROWN — 87.25 vs 72.5 beans per 100 (+20.3%)
GRADE 4 FISSURING — 85 beans GOcacao vs 69 traditional (+23.2%)
CONSISTENCY — 10.17% CV GOcacao vs 22.67% traditional (−55.2%)
DURATION — 7% shorter ferment
STATUS — Independent, unsupervised evaluation
With Asst. Prof. Dr. Tansiphorn Na Nan
With Asst. Prof. Dr. Tansiphorn Na Nan — ISTC, Chulalongkorn
+23.2% grade 4 fissuring 85 beans vs 69 traditional

Grade 4 fissuring indicates that flavour precursors formed during the ferment.

10.17% coefficient of variation vs 22.67% traditional

A 55.2% reduction in batch-to-batch variation.

5T cacao processed deployed across 8 sites

Recorded in the field rather than under laboratory conditions, across a range of microclimates, cooperative structures and levels of farmer experience.


Batch Consistency

Coefficient of variation

Coefficient of variation measures how much batch quality swings around the mean. Traditional fermentation sits at 22.67%. GOcacao cuts it to 10.17%.

For buyers and chocolate makers, consistency matters as much as peak quality.

GOcacao — CV 10.17%
Traditional — CV 22.67%
What this means

Measured on grade 4 fissuring across graded samples.


Deployment Footprint

Deployment sites

GOcacao deployment sites across Thailand
8 active deployment sites
Site Directory
Chiang Mai

Northern Thailand. Mountain-zone fermentation, high diurnal temperature variance.

Lampang ×2

Two cooperative sites. Northern plains. One of the highest-yield deployment locations.

Phrae

Northern cooperative. 13 active farmers, 30 joining. A former orange-growing community that moved to cacao production.

Nakhon Pathom

Central Thailand. Humid lowland climate. Close-proximity monitoring of multiple boxes.

Ban Phaeo

Samut Sakhon Province. Coastal microclimate with high ambient humidity.

Bangkok

Urban cooperative and R&D base. Also used for controlled comparison trials.

Sa Kaeo

Eastern border region. Dryer conditions, lower humidity. Algorithm trained on variance.

Rayong

Gulf of Thailand coast. Tropical coastal climate, high heat and humidity loading.

GOcacao — Rayong deployment site
Rayong Site
Total processed

5 Tonnes

Across 8 sites, diverse microclimatic conditions.


Farmer Impact

Farmer income

GOcacao farmers — Thailand

Farmers capture 5–7% of what a finished bar is worth. Better fermentation produces better beans, and better beans earn a premium.

7%
Faster fermentation cycle
8
Active cooperative partnerships
5T
Cacao processed to date
What The Premium Looks Like

Price per kilogram

Standard cacao in Thailand fetches around 90 baht a kilogram. Beans fermented properly, with the data to prove it, earn a premium on top of that — de'Finnitive Chocolates pays 25–45% above commodity price for them. In Phrae, GOcacao-monitored batches now reach 130 baht a kilogram.

A difference of 40 baht per kilogram, per batch.

Oranges (former crop) 10 ฿/kg

Market average — Phrae province, 2023

Cacao — without GOcacao 90 ฿/kg

Standard market rate — unoptimised fermentation

Cacao — with GOcacao 130 ฿/kg

Premium achieved — Phrae cooperative, 2024

The Phrae Numbers

Batch size 50 kg
Price achieved 130 ฿/kg
Revenue per batch 6,500 ฿
Batches per year 12 – 18
Annual revenue 78,000 – 117,000 ฿
vs standard cacao (90 ฿/kg) Top of the 25–45% premium band
Active farmers 13
Joining next season 30+

Case Study — Phrae, Northern Thailand

Case study: Phrae

Teaching fermentation to Phrae cooperative farmers
Hands-on training session, Phrae
Cooperative training, Phrae Northern Thailand
GOcacao field session, Phrae
Phrae cooperative group
The Problem

Prior conditions

For years, the Phrae community grew oranges. Then orange prices collapsed — falling to as low as 10 baht per kilogram. The community had hundreds of cacao trees and land well-suited to the crop, but no understanding of the fermentation process that separates raw cacao from high-value product.

Without proper fermentation, cacao is worth little — unfermented or poorly fermented beans are rejected by premium buyers. The community had the trees but was capturing none of the value.

The Intervention

Deployment and outcome

GOcacao deployed devices and ran hands-on fermentation training with the Phrae cooperative. The device signalled the turn point on each fermentation cycle.

Within the first season the cooperative was achieving 130 baht/kg, against roughly 90 baht/kg for unassisted cacao and 10 baht/kg for their former orange crop. With 50 kg batches running 12–18 times per year, each farming family now earns 78,000–117,000 baht annually from cacao alone.

13 farmers are currently active and 30 more from surrounding areas plan to join next season.

130 ฿
Per kg achieved in Phrae — against ~90 ฿ standard
13×
The return on their former orange crop (~10 ฿/kg)
43+
Farmers — 13 active, 30+ joining
Ban Phaeo — Samut Sakhon Province
Ban Phaeo cooperative site
Nakhon Pathom deployment site
Sa Kaeo site — second view
Training at Lampang cooperative
Collaboration — Chiang Mai University
Fermentation monitoring in the field
GOcacao at Four River Company
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