Jade dew is the literal translation of Gyokuro, and the name points at the growing method behind the cup: plants are shaded for roughly three weeks before the spring picking, which pushes up chlorophyll and gives the leaf its deep green color and a sweeter, more umami-forward flavor than sun-grown greens. The leaves are hand-picked while still young and tender, then steamed, rolled, and dried in the usual sequence for Japanese green tea, keeping that vivid color intact through processing.
In the cup, expect a gentle sweetness up front, close to young spring grass, followed by umami notes that read as seaweed and vegetal, with a smooth, thick, almost creamy texture. A light drying astringency shows up toward the finish and balances the sweetness, and there's a clean, ocean-air quality to the aroma. The liquor itself comes out pale green.
Gyokuro carries real caffeine, and the same shading process that builds sweetness also tends to raise the leaf's caffeine content, so this isn't a mellow, low-caffeine green. It's paired with a high level of theanine, the amino acid credited with a calming effect, which is part of why the tea has long been drunk for a combination of alertness and ease rather than a jittery lift.
Brew it gently: this is not a tea for boiling water. Use water cooled to around 60°C and steep for about two minutes per 250ml — the low temperature is what protects the sweetness and stops the bitterness that hotter water would pull out of leaves this delicate. Gyokuro also holds up to multiple infusions, with the flavor shifting a little each time you re-steep, so it's worth treating the first cup as just the opening note rather than the whole story. Store the leaves in an airtight container away from light, heat, and moisture to keep that character intact.
