Sirah Kencong

Sirah Kencong is a tea estate located in East Java Province, Indonesia, at an elevation of 184 metres above sea level. The estate is operated by PT Perkebunan Nusantra XII, one of Indonesia's state-owned plantation companies. It is recorded as a supplier to Morrisons, the UK supermarket chain, and produces both black and green tea.

Terroir & Climate

At 184 metres elevation, Sirah Kencong sits at a relatively low altitude for tea cultivation, particularly when compared to the high-grown estates found elsewhere in Java and across Southeast Asia. Estates at this elevation in tropical Indonesia typically experience warm, humid conditions year-round, with less pronounced diurnal temperature variation than is found in highland sites. Such conditions generally favour vigorous vegetative growth and can support multiple flush cycles annually, though the leaf character tends to differ from that of higher-altitude gardens.

East Java's tropical climate, combined with this modest elevation, typically results in a growing environment that produces robust, fast-growing leaf. Estates in similar lowland settings often contend with higher pest and disease pressure, but benefit from consistent warmth and moisture availability. The latitude—just over eight degrees south of the equator—means the estate experiences relatively stable day length throughout the year, which tends to support continuous cropping rather than the more sharply defined seasonal dormancy seen in temperate or high-altitude tea regions.

Tea Produced

Sirah Kencong produces both black and green tea. Estates at lower elevations in East Java generally yield teas with a straightforward, robust character; black teas from such settings tend to offer malty, full-bodied profiles suited to blending and everyday consumption, while green teas are typically vegetal and brisk. The warm growing conditions at 184 metres often result in liquor that is strong and assertive rather than delicate, with less of the aromatic complexity associated with high-grown leaf. These characteristics make the estate's output well suited to the commodity and retail segments of the global tea trade.

Supply Chain & Market Position

Sirah Kencong is recorded as a supplier to Morrisons, one of the United Kingdom's major supermarket chains. This relationship places the estate within the high-volume, cost-sensitive retail supply chain, where Indonesian teas are valued for their consistency, yield, and competitive pricing. The presence of a major UK grocer among its buyers suggests that Sirah Kencong's output meets the quality and traceability standards required for own-label or branded retail tea products, and underscores the estate's role in supplying the everyday tea market rather than specialty or single-origin segments.

• Recorded supplier to  Morrisons

Operator

PT Perkebunan Nusantra XII is a state-owned Indonesian plantation company, part of the Nusantara network that manages a wide range of commodity crops across the archipelago. The company operates at least one other tea estate recorded in our directory, indicating a multi-site footprint in Indonesia's tea sector. State ownership typically brings centralised management, standardised practices, and integration into domestic and export supply chains, though operational transparency and investment levels can vary across the portfolio.

Location & Neighbouring Estates

Sirah Kencong lies at -8.0948, 112.1728 in East Java Province, Indonesia. Its 184 m elevation is the 15th highest of 17 estates we map in Indonesia. The nearest estates in the TeaTrade directory, measured point-to-point from these coordinates, are:

• Wonosari — 60 km away · East Java
• Pasir Malang Tea Estate — 60 km away · Malang Regency
• Dayeuh Manggung Tea Estate — 478 km away · Kabupaten Garut
• Sedep Tea Estate — 502 km away · WEST JAVA
• Talunsantosa Tea Estate — 502 km away · West Java

Estates at a Similar Altitude to Sirah Kencong

Elevation shapes how slowly leaf matures, so we match Sirah Kencong (184 m) with estates within 150 m of its height that are not its neighbours. Each is shown with its own 2025 climate. Sirah Kencong recorded 2,832 mm in 2025, 12% more than the 2,527 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
Hannam Tea Estate	Seogwipo-si, Korea Republic Of	185 m	2,142 mm	18.6 °C
Ferndale	Sabaragamuwa Province, Sri Lanka	183 m	3,902 mm	29.5 °C
New Doralawitiyahena	Sabaragamuwa Province, Sri Lanka	186 m	2,770 mm	29.4 °C
Atelier Sueyoshi Seicha Llc	Soo-Shi, Japan	187 m	1,811 mm	21.4 °C
Ocha No Kajihara	Kumamoto, Japan	178 m	2,010 mm	21.3 °C

Sirah Kencong Compared with Indonesia

In Indonesia, Sirah Kencong is drier than 88% of the others by 2025 rainfall; lower than 88% of the others by elevation; warmer than 81% of the others by daytime temperature. The table sets Sirah Kencong against the 16 other estates we map in Indonesia, so you can see whether it is typical for its country or an outlier.

Measure	Sirah Kencong	Country median	Country range
Elevation	184 m	1,410 m	23 to 1,859 m
Annual rainfall (2025)	2,832 mm	3,106 mm	2,437 to 4,698 mm
Mean daily high	29.6 °C	22.9 °C	20.0 to 30.6 °C
Mean overnight low	22.3 °C	15.9 °C	13.3 to 23.5 °C

Observed Climate at Sirah Kencong (2025)

ERA5 reanalysis data modelled for Sirah Kencong’s coordinates recorded 2,832 mm of precipitation across calendar year 2025. The wettest month was November (463 mm) and the driest was July (46 mm). Daytime highs averaged 29.6 °C and overnight lows 22.3 °C over the year; March was the warmest month and July the coolest.

Metric	2025 value
Annual precipitation	2,832 mm
Wettest month	November (463 mm)
Driest month	July (46 mm)
Mean daily high	29.6 °C
Mean overnight low	22.3 °C

Frequently Asked Questions

Where is Sirah Kencong located?

Sirah Kencong is in East Java Province, Indonesia, at coordinates -8.0948, 112.1728, at an elevation of about 184 metres.

Who operates Sirah Kencong?

Sirah Kencong is operated by PT Perkebunan Nusantra XII, according to public supply-chain records.

What type of tea does Sirah Kencong produce?

Sirah Kencong is recorded as producing black and green tea.

Which buyers does Sirah Kencong supply?

Public supplier disclosures record Sirah Kencong as supplying Morrisons.

How much rain does Sirah Kencong receive?

ERA5 reanalysis data for the estate's coordinates recorded 2,832 mm of precipitation in 2025, peaking in November (463 mm).

How does Sirah Kencong compare with estates at a similar elevation?

Sirah Kencong recorded 2,832 mm in 2025, 12% more rain than the 2,527 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].