Cassava drying systems in Cameroon
What the crop demands, what the country imposes, and what that means for capacity.
Cassava is grown across most of Cameroon and processed into a wide range of regional products — bâton de manioc, water fufu, gari — almost all of them fresh and perishable. The country’s geographic spread means growing areas are often a long way from the urban markets that would pay most, and the root does not survive the journey.
The situation in Cameroon
Often described as Africa in miniature, and for processing purposes that is literally true: rainforest, highland and Sahel inside one set of borders, with harvests that therefore never all happen at once. A chamber in the Littoral can work cocoa, pepper and plantain across a calendar that has no real off-season, which changes the utilisation arithmetic completely.
Growing regions. the Littoral and South-West for cocoa and pepper, the West highlands for coffee and horticulture
What cassava drying demands
Cassava deteriorates within 48 hours of lifting, which makes it the most time-pressured root crop there is. Chipped and dried to 10–12 % it becomes flour, gari or an industrial starch feedstock with a shelf life measured in months rather than days. The drying itself is undemanding; the clock is the difficulty.
Harvest calendar
Year-round harvest, lifted as needed across all the producing regions. No seasonal peak, and therefore no idle season for a drying line.
The working campaign window as the trade runs it. It shifts a fortnight either way with the rains.
Process parameters
| Parameter | Value |
|---|---|
| Drying temperature | 55–65 °C |
| Final moisture | 10–12 % |
| Yield (fresh : dried) | 3 : 1 |
| Cycle time | 10–16 h |
Sizing starting points from ordinary processing practice, not a validated recipe for your product. Confirm against your own intake and your buyer’s specification.
Worked sizing example
For a unit taking 15 tonnes of fresh product a day, at a yield of 3 : 1:
Illustrative figures calculated from the yield and campaign window above. They size a conversation; they do not describe any existing installation.
Fuel available in Cameroon
Palm kernel shell and cocoa pod husk in the south and Littoral, coffee husk in the west, plentiful sawdust around Douala.
- Base load. Palm kernel shell · Cocoa pod husk · Coffee husk and parchment
- Supplement. Sawdust · Palm fibre (mesocarp) · Corn cob · Cotton stalk
See all 27 fuels and their properties
Market and buyer requirements
Domestic urban markets in Douala and Yaoundé for flour and shelf-stable products, plus regional trade into Gabon and Equatorial Guinea where Cameroonian food products are widely sold.
Frequently asked questions
Why does Cameroon’s geography matter for cassava?
Because growing areas are often far from the urban markets that pay most, and a root that deteriorates within 48 hours does not survive the journey. Drying to 10–12 % converts a crop that cannot travel into one that can be sold in Douala or across the border.
Does year-round harvest help the economics?
It is the strongest argument for cassava as an anchor crop. A 15 t/day line produces around 5 tonnes daily of dried product at 3 : 1 and runs every month rather than for a hundred-day season, so the same capital turns over roughly three times the volume of a seasonal crop.
What other crops can share the chamber?
In the Littoral, almost anything: cocoa at 50–60 °C from September, Penja pepper at 50–58 °C from November, plantain at 60–65 °C year-round. Cameroon’s spread of rainforest, highland and Sahel means harvests never all happen at once, so one chamber can hold a calendar with almost no idle weeks in it.
Size a unit in Cameroon
Tell us your daily fresh volume and target output, and we will size the chambers, the burner and the fuel available around your site.
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