Ahotor oven

A modern Ghanaian smoking oven

Ahotor is a modern improved fish-smoking oven, not the name of an ancient or unchanged traditional structure. The Sustainable Fisheries Management Project introduced it in 2016 with work involving Ghanaian research and fisheries institutions. SNV described a pilot stove built by trained local masons in the Volta Region in 2017. Later programme reports describe the design as an improvement on traditional methods such as the Chorkor, rather than as a replacement for every local smoking practice.

The fixed masonry body distinguishes it from portable metal drums and tray assemblies. Its open top receives removable wooden trays, while brick-lined combustion chambers sit within a cement-based outer body. The publicly accessible test description says the trays stack at the top and fit together at their edges. The Association’s photograph also documents a broad cement body, paired fire openings and tray stacks at the processing site.

Fire, airflow and the collector

The 2016 technical report describes two partitioned combustion chambers and a grate inside the chamber. It presents the grate as a route for air to reach the wood fire. The tray stack above forms the smoking space. These components make the Ahotor a designed system of combustion and food-holding parts, rather than simply a raised rack over an open fire.

The second notable component is the fat collector. Fish fats, juices and blood that drip into a fire can contribute to polycyclic aromatic hydrocarbons, or PAHs, in smoke and food. SNV describes the collector as routing those liquids away from the fire. That design purpose should not be confused with a guarantee that a given batch meets a food-safety standard: the reports measure particular ovens and trials, and do not validate every installation or use.

Where it was tested and introduced

The 2017 performance evaluation reports tests at sites in Ghana’s Central and Western regions, including Elmina, Apam, Winneba, Mumford, Moree, Anlo Beach, Takoradi and Sekondi. SNV’s earlier pilot demonstrations took place in the Volta Region. These records document project activity and installations; they do not establish that every Ghanaian fish-smoking community adopted the oven.

The evaluation reported a fuel-efficiency advantage over the Chorkor under its test conditions. That is a measured comparison, not a universal result for all fuels, operators, maintenance states or oven builds. A later 2025 account describes a 2022 modified version and reports user concerns about heat distribution, time and capacity in earlier units. The modified design should not be confused with the original Ahotor.

What the available plans do not establish

The official 2015 construction manual is cited by project material, but its drawings could not be inspected for this record. A third-party transcription of dimensions is not an adequate substitute for checking the primary manual. For that reason this page omits measurements and does not prescribe a foundation, mortar mix, hot-zone material grade, lintel, combustion path, collector clearance or tray load.

The sourced description identifies the oven and explains the relationship among its main parts. It is not a build-ready plan. A qualified local designer and the original construction documentation are needed to specify and assess any new installation; performance figures from a report should not be read as approval of an unreviewed build.

The SNV event photograph in the gallery is retained as context, not as the design reference: a visible campaign shirt names another oven, and the model in that scene cannot be confirmed from the photograph alone. The generated illustration is grounded instead in the National Fish Processors and Traders Association photograph, which identifies the Ahotor and shows its paired chambers.