In short: Sasaki Green Tea Company is a tea estate located in Kamiuchida, Kakegawa City, Japan, operating at 28 metres elevation and certified by the Ethical Tea Partnership.
Sasaki Green Tea Company is a tea estate situated at 350 Kamiuchida in Kakegawa City, Shizuoka Prefecture, Japan. The operation is managed by the company of the same name and sits at an elevation of 28 metres. The estate specialises in the production of green tea and holds certification from the Ethical Tea Partnership.
Terroir & Climate
At 28 metres above sea level, this estate occupies low-lying terrain characteristic of parts of the Kakegawa growing region in Japan's Shizuoka Prefecture. Estates at this elevation in the area typically experience a temperate maritime-influenced climate, with mild winters and warm, humid summers. The low altitude generally allows for earlier flushing in spring compared to high-elevation gardens, and the growing season tends to be longer, potentially permitting multiple harvests throughout the warmer months.
Tea cultivation at such modest elevations in Shizuoka often benefits from deep alluvial soils and good water availability from surrounding river systems. The flat to gently rolling topography common at these altitudes tends to facilitate mechanised cultivation and harvesting, which has become widespread in Japanese green tea production. Day-night temperature variation is typically less pronounced than in mountain gardens, and the maritime proximity often brings morning mists that can moderate direct sunlight exposure during the growing season.
Tea Produced
As a green tea producer in Kakegawa, the estate works within a region historically associated with sencha and other steamed green tea styles that form the backbone of Japan's domestic and export market. Teas from this latitude and elevation in Shizuoka typically yield a bright, vegetal cup with a balance of umami and refreshing astringency. The lower altitude and extended growing period often contribute to leaf that is slightly more robust and less delicate than high-mountain Japanese greens, though processing technique—particularly the degree and duration of steaming—plays a decisive role in the final character. Kakegawa-area teas are generally recognised for their accessible, everyday-drinking profile rather than the premium, shaded styles of more celebrated appellations.
Operator
The estate is operated by Sasaki Green Tea Company, which manages this site in Kakegawa City. No other estates operated by the same company are currently recorded in this directory.
Certifications & Ethics
The estate holds certification from the Ethical Tea Partnership, an international membership organisation that works to improve social, environmental and economic conditions in tea-producing regions. ETP certification indicates that the operation has undergone audit against the partnership's standards, which cover labour rights, health and safety, and environmental stewardship. For buyers, the certification provides third-party assurance of baseline ethical practices; for workers, it is intended to support improved conditions and access to grievance mechanisms, though standards and enforcement can vary across certified sites.
Location & Neighbouring Estates
Sasaki Green Tea Company lies at 34.7450, 138.0527 in 350 Kamiuchida Kakegawa City, Japan. Its 28 m elevation is the 7th highest of 11 estates we map in Japan. The nearest estates in the TeaTrade directory, measured point-to-point from these coordinates, are:
- Kobayashi Aracha Factory — 2.5 km away · Kikugawa
- Marumatsu Tea Co., Ltd. — 2.5 km away · Shizuoka
- Aiya Co., Ltd. — 86 km away · Nisho
- Yame Tea Kumaen — 173 km away · Tokyo
- Shogyoken Seicha Co Ltd — 207 km away · 54 Kusauchi Miyanogo Kyotanabeshi
Observed Climate at Sasaki Green Tea Company (2025)
ERA5 reanalysis data modelled for Sasaki Green Tea Company’s coordinates recorded 1,920 mm of precipitation across calendar year 2025. The wettest month was May (358 mm) and the driest was February (27 mm). Daytime highs averaged 21.0 °C and overnight lows 12.5 °C over the year; August was the warmest month and February the coolest.
| Metric | 2025 value |
|---|---|
| Annual precipitation | 1,920 mm |
| Wettest month | May (358 mm) |
| Driest month | February (27 mm) |
| Mean daily high | 21.0 °C |
| Mean overnight low | 12.5 °C |
Frequently Asked Questions
Where is Sasaki Green Tea Company located?
Sasaki Green Tea Company is in 350 Kamiuchida Kakegawa City, Japan, at coordinates 34.7450, 138.0527, at an elevation of about 28 metres.
Who operates Sasaki Green Tea Company?
Sasaki Green Tea Company is operated by Sasaki Green Tea Company, according to public supply-chain records.
What type of tea does Sasaki Green Tea Company produce?
Sasaki Green Tea Company is recorded as producing green tea.
What certifications does Sasaki Green Tea Company hold?
Sasaki Green Tea Company is recorded as holding the following certification(s): Ethical Tea Partnership.
How much rain does Sasaki Green Tea Company receive?
ERA5 reanalysis data for the estate's coordinates recorded 1,920 mm of precipitation in 2025, peaking in May (358 mm).
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].
