Asahina
A narrow river valley at Okabe in Fujieda, Shizuoka, and one of the three districts that account for essentially all Japanese gyokuro alongside Uji and Yame. Shading here is still done in the traditional honzu manner over a good part of the crop — reed screens and loose rice straw laid over a frame, added in stages so light is cut gradually rather than at once — which is slower and dearer than the black synthetic cloth used elsewhere and produces a more diffuse shade. The valley is small, the output is tiny, and almost none of it leaves Japan.
Elevation
Recorded at 50–400 metres.
How firm this is: Inferred from general knowledge of the district rather than measured or taken from a source that states it.
When it is picked
A gyokuro calendar, which means the important date is not the pick but the covering: the gardens are shaded for around three weeks before the first pick, so the plant grows the last of its spring leaf in near-darkness. Shading raises amino-acid content and suppresses the astringency that light drives, and it is done once, on the first crop, because nothing later is worth the cost.
How firm this is: Inferred from general knowledge of the district rather than measured or taken from a source that states it.
How production is organised
A small number of specialist growers working shaded gardens by hand, in one of the three districts Japan's gyokuro reputation rests on. The labour intensity of covering and hand-picking is why the category is small and expensive rather than why it is good.
How firm this is: Inferred from general knowledge of the district rather than measured or taken from a source that states it.
How the name is written
Also transliterated as asahina, asahina okabe. Romanisations of a district name vary by system and by vendor, and a packet spelling one way is not describing a different place.
Teas this region is known for
- Gyokuro — Thick and almost broth-like, with very little astringency and a sweetness that arrives before anything else. The clearest teaching case in tea for what umami actually means in a cup.
- Yame gyokuro — Intensely savoury and thick, closer to a broth than to tea. The near-cold brewing is what makes it possible.
Other growing regions in Japan
The neighbouring districts are the useful comparison: they share a country, a grading convention and often a cultivar, so what differs between them is closer to terroir than anything a cross-border comparison can isolate.
Sources
- TeaHQ editorial synthesis — TeaHQ
This page is TeaHQ’s own synthesis throughout. No external document stands behind the elevation band, the climate note or the character described above, which is why each carries its confidence in the open.