Weru Tea Factory

Weru Tea Factory is a black tea estate located in the Mariani region of Kenya, at an elevation of 1,479 metres. The facility is operated by the Kenya Tea Development Agency, the statutory body responsible for providing management and processing services to smallholder tea farmers across Kenya. No buyer records for Weru Tea Factory have been published in trade databases or supply-chain disclosures to date.

Terroir & Climate

At 1,479 metres, Weru sits in a mid-elevation zone typical of many Kenyan tea-growing areas. Estates at this altitude generally experience moderate diurnal temperature variation, which tends to slow leaf growth relative to lower, warmer sites. The latitude—just south of the equator—means year-round growing is possible, though regional rainfall patterns typically govern the intensity of plucking cycles.

The Mariani area, like much of central Kenya, usually benefits from well-distributed bimodal rainfall, with longer rains in March to May and shorter rains around October to December. Soils in this region are often volcanic in origin, which tends to support vigorous root systems and, when well-managed, can contribute to higher levels of extractable solids in the made leaf. However, specific soil analyses and microclimate data for Weru have not been disclosed.

Tea Produced

Weru produces black tea. Kenyan black teas from mid-elevation estates are typically CTC-processed and valued for their brisk, coppery liquor and robust body. Mariani-area teas generally exhibit good colour and strength in the cup, characteristics that make them well-suited to blending for packet tea and breakfast blends in international markets. Without published tasting notes or auction records specific to Weru, it is reasonable to assume the factory's output shares the regional profile: clean, malty and astringent, with the brightness characteristic of equatorial high-grown leaf.

Operator

The Kenya Tea Development Agency (KTDA) is the largest manager of smallholder tea in Kenya, operating a network of factories that process leaf from thousands of contracted growers. KTDA provides agronomic extension, factory management and marketing services, and holds a dominant position in the country's tea supply chain. In addition to Weru, the agency operates six other estates recorded in this directory, reflecting its scale and geographic reach across Kenya's tea belt.

Certifications & Ethics

Weru Tea Factory holds certification from the Ethical Tea Partnership, a multi-stakeholder initiative that conducts independent monitoring of labour and environmental standards on tea estates and in their supply chains. For buyers, ETP membership signals a commitment to continuous improvement in working conditions, pesticide management and community welfare. For workers and smallholders, it entails regular farm audits and access to grievance mechanisms, though the scope and rigour of oversight can vary by region and audit frequency.

Location & Neighbouring Estates

Weru Tea Factory lies at -0.2780, 37.6381 in Mariani, Kenya. Its 1479 m elevation is the 178th highest of 186 estates we map in Kenya. The nearest estates in the TeaTrade directory, measured point-to-point from these coordinates, are:

• Kinoro Tea Factory — 12 km away · Eastern Province
• Rukuriri Tea Factory — 15 km away · RUKURIRI TEA FACTORY
• KENYA TEA DEVELOPMENT AGENCY (KTDA) - Mungania — 20 km away · PO BOX 927
• Mungania Tea Factory — 20 km away · D467
• Imenti Tea Factory — 24 km away · Meru

Estates at a Similar Altitude to Weru Tea Factory

Elevation shapes how slowly leaf matures, so we match Weru Tea Factory (1,479 m) with estates within 150 m of its height that are not its neighbours. Each is shown with its own 2025 climate. Weru Tea Factory recorded 1,001 mm in 2025, 53% less than the 2,149 mm average across these estates: at the same height, local weather and exposure matter as much as elevation.

Estate	Where	Elevation	Rain 2025	Mean high
Anshun Royal Tea village tea garden	Guizhou Province, China	1,477 m	1,417 mm	19.4 °C
KYENJOJO	Mabale, Uganda	1,481 m	1,236 mm	25.5 °C
Katumba tea estate	Mbeya, Tanzania United Republic Of	1,474 m	2,554 mm	21.1 °C
CHAMONG TEE EXPORTS PVT LTD	WEST BENGAL, India	1,472 m	2,552 mm	20.3 °C
Negara KanaanTea Estate	Kab. Bandung, Indonesia	1,487 m	2,986 mm	22.3 °C

Weru Tea Factory Compared with Kenya

In Kenya, Weru Tea Factory is drier than 86% of the others by 2025 rainfall; lower than 96% of the others by elevation; warmer than 68% of the others by daytime temperature. The table sets Weru Tea Factory against the 185 other estates we map in Kenya, so you can see whether it is typical for its country or an outlier.

Measure	Weru Tea Factory	Country median	Country range
Elevation	1,479 m	1,990 m	821 to 2,790 m
Annual rainfall (2025)	1,001 mm	1,518 mm	754 to 2,070 mm
Mean daily high	23.8 °C	22.4 °C	16.8 to 30.2 °C
Mean overnight low	15.6 °C	12.0 °C	8.5 to 19.8 °C

Observed Climate at Weru Tea Factory (2025)

ERA5 reanalysis data modelled for Weru Tea Factory’s coordinates recorded 1,001 mm of precipitation across calendar year 2025. The wettest month was March (155 mm) and the driest was February (21 mm). Daytime highs averaged 23.8 °C and overnight lows 15.6 °C over the year; February was the warmest month and August the coolest.

Metric	2025 value
Annual precipitation	1,001 mm
Wettest month	March (155 mm)
Driest month	February (21 mm)
Mean daily high	23.8 °C
Mean overnight low	15.6 °C

Frequently Asked Questions

Where is Weru Tea Factory located?

Weru Tea Factory is in Mariani, Kenya, at coordinates -0.2780, 37.6381, at an elevation of about 1479 metres.

Who operates Weru Tea Factory?

Weru Tea Factory is operated by Kenya Tea Development Agency, according to public supply-chain records.

What type of tea does Weru Tea Factory produce?

Weru Tea Factory is recorded as producing black tea.

What certifications does Weru Tea Factory hold?

Weru Tea Factory is recorded as holding the following certification(s): Ethical Tea Partnership.

How much rain does Weru Tea Factory receive?

ERA5 reanalysis data for the estate's coordinates recorded 1,001 mm of precipitation in 2025, peaking in March (155 mm).

How does Weru Tea Factory compare with estates at a similar elevation?

Weru Tea Factory recorded 1,001 mm in 2025, 53% less rain than the 2,149 mm average of estates at a similar elevation.

Data sources: public supply-chain disclosures (Ethical Tea Partnership member lists, Rainforest Alliance certificate holders and retailer supplier disclosures); climate figures are ERA5 reanalysis modelled for the estate’s coordinates via Open-Meteo (calendar year 2025); coordinates and elevations from geocoded records. Spotted an error? Email [email protected].