Origin · No. iv

Kukicha

Asamushi kukicha. The Japanese stem tea, from Shizuoka. Soft hay, light umami, the lowest caffeine in the collection.
Origin
Shizuoka · Japan
Style
Green · Stem tea (asamushi)
Harvest
Spring 2026 · Steamed, un-roasted
Caffeine
Very low · Stem tea
Saint Graal · No. iv

Kukicha

The stem rather than the leaf, sorted out of an asamushi sencha as it is refined in Shizuoka. Steamed, never roasted. Soft, green and quietly sweet.

12 pyramid sachets · stem & twig leaf · ~36 cups (3 pours each)
$38 USD

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The Origin

From the gardens of Shizuoka.

Kukicha is what Japanese households drink every day. It is made from the stems, twigs and stalks of the plant rather than the leaf, and it behaves differently for it. Where sencha gives bright vegetal grass and matcha gives concentrated umami, kukicha gives mild sweetness, hay, and a clean mineral body. The cup is pale gold, the register is gentle, and the caffeine is barely there.

Ours comes from the refining of an asamushi sencha, the light-steamed style, in Shizuoka. When that sencha is graded, the stems are separated out, and those stems are the tea. They carry more theanine and less caffeine than the leaf does, which is what gives the cup its sweetness and its calm. We take it as a deliberate product, not as a by-product of something else.

160
°F Brewing Water
Asamushi
Light-Steamed Style
Very Low
Caffeine
The Process

Stems, twigs, and the cup that comes from the side.

Almost everything sold as green tea is leaf. This is the stem, lifted out of an asamushi sencha while it is being refined and kept instead of swept aside. Stem holds more of the amino acid that lands on the palate as sweetness, and less of the caffeine that gives leaf its edge, so the cup comes out soft and faintly sweet with none of the grip. It carries the least caffeine of anything in the house, which is why it survives the evening. Stems hold more theanine and less caffeine than the leaves do. Twigs add a soft mineral note. The combination produces a cup that's lighter, sweeter, and dramatically lower in caffeine than the leaf tea it came from.

We work with a Shizuoka producer who treats the stem tea as a deliberate product rather than a by-product. The stems are hand-sorted, briefly steamed to halt oxidation, then gently dried and sealed. No roasting, no flavoring, no blending. The cup that arrives is exactly what stem tea from Shizuoka tastes like in spring.

i
Source
Stems separated during the refining of an asamushi sencha in Shizuoka, then sorted to keep the stem and remove leaf fragments.
ii
Steam
Brief steaming, about 30 seconds, to halt oxidation. The same kill-green principle as sencha but adjusted lighter for the stem material.
iii
Dry
Gentle drying to roughly 5% moisture content. No roasting, no firing, no heat-treatment beyond the steam. The leaf stays green and the natural sweetness is preserved.
iv
Sachet
Hand-graded into pyramid sachets within weeks of the harvest. Kukicha's aromatic compounds are delicate and fade quickly once exposed, so the sooner it is sealed the better.
The Cup

Hay, light umami, sweet mineral. The quietest cup in the collection.

The colour is a pale gold, almost translucent. The aroma is the unmistakable kukicha nose. Fresh hay, mild grass, a hint of milky umami, and the soft underlying sweetness that distinguishes stem tea from leaf-only kukicha.

First. The Aroma
Fresh hay, mild grass, milky umami
The kukicha nose. Soft, light, vegetal but not bright. Where sencha smells like a green field, stem tea smells like the air over hay drying in the sun. Quiet, low, and considered.
Then. The Body
Sweet stems, light umami, clean mineral
The body is gentler than its colour suggests. There's a real sweetness in the cup that comes from the stems specifically. They carry more sugars than the leaf does. A whisper of umami, no astringency at all.
Last. The Echo
Long clean finish, returning sweetness, calm
The finish is the calmest of any tea we make. Clean, faintly sweet, with a return note that arrives several seconds in. Many drinkers describe a settling effect: partly the very low caffeine, partly the calmness of the cup itself.

A tea for after dinner, for the conversation that has slowed down, or for the cup when nothing more demanding is wanted.

The Ritual

Cool water. Brief steep. The simplest tea in the collection.

Kukicha asks for nothing complicated. Cool water (the stems are delicate; boiling water scalds them), 60 to 90 seconds, and the cup is ready. The least temperamental tea in the lineup, and the most welcoming.

i
1
Sachet
Drop the unopened pyramid into a 10oz cup or pot. The stems unfurl quickly in warm water; no advance preparation needed.
ii
160°F
Water
Roughly 70°C. The stem tea is delicate. The stems give up their sweetness easily and don't need heat to extract them. Boiling water turns the cup bitter and dull.
iii
60-90 sec
Steep
One minute for the standard cup. Up to 90 seconds for a more pronounced register. Past two minutes, even kukicha can turn a touch bitter.
iv
2-3×
Pour
A second pour at one minute is welcome. The cup is rounder and slightly sweeter the second time. A third is light but still pleasant.
The Why

The Japanese tea you can drink at any hour.

Kukicha is the Japanese tea you can drink at any hour. The stem-and-twig composition gives it very low caffeine. Roughly 5 to 15mg per cup, less than a fifth of a black tea. Children drink it, the elderly drink it, and you can pour it after dinner without disturbing sleep. Japan calls it the household tea, and it earns the name.

Most kukicha sold in the West is leaf-only and machine-processed. The cup that arrives is thin, vegetal in an uninteresting way, and lacks the sweetness that defines the Shizuoka register. We chose Asamushi kukicha, the high-grade stem-and-twig material from Shizuoka sencha and high-grade sencha processing, because it's the most refined expression of the category. Stems carry residual sweetness from the shading process used to grow sencha, and that sweetness comes through cleanly in the cup.

Saint Graal sources from a single Shizuoka producer who hand-sorts the stem tea material and packages it within weeks of harvest. Steamed, gently dried, never roasted. The cup that arrives is exactly what stem tea from Shizuoka tastes like in spring. Light, sweet, mineral, and as quiet as tea gets.

Common Questions
What does kukicha taste like?
+
Light hay, mild grass, a soft umami in the back of the cup, and an underlying sweetness that distinguishes stem tea (the high-grade stem tea from sencha and high-grade sencha processing) from leaf-only kukicha. The cup is pale gold, the body is gentle, and there is no astringency. If you find sencha too bright or sencha too concentrated, kukicha is the same plant family in a much quieter register.
What is asamushi, and why does it matter?
+
Asamushi means lightly steamed. Japanese green tea is steamed soon after picking to stop oxidation, and the length of that steam shapes the cup. A short steam keeps the leaf intact and the liquor clear and delicate, where a long steam breaks it down for a deeper, opaque cup. Our kukicha comes from the refining of an asamushi sencha, so it carries that lighter, cleaner character through into the stem.
How much caffeine does kukicha have?
+
Very low. Stems and twigs contain dramatically less caffeine than leaves. Roughly 5 to 15mg per cup, less than a fifth of a black tea, less than a third of a green tea. Kukicha is the traditional Japanese answer to "can I drink tea at night?" Yes you can. This one.
Can children and the elderly drink kukicha?
+
Yes, and that is a traditional feature of the category in Japan. The very low caffeine, the gentle profile, and the soft sweetness make kukicha the household tea served to all ages, often at meals. Japanese pediatricians and elder-care practitioners do not regard it as problematic the way they would a strong green tea or coffee.
When should I drink kukicha?
+
Any time of day. Traditionally it is a household tea in Japan served at meals and throughout the day. The very low caffeine makes it the only tea we make that is truly evening-friendly. Pair with light food, soft cheese, citrus desserts, or nothing at all.