The Complete Guide to Uji Matcha
When you think of matcha, no region embodies its soul and legacy quite like Uji. UJI MATCHA isn’t just any matcha powder, it’s steeped in centuries of tradition, perfected taste, and artisanal pride - whether you are new to matcha, considering your first ceremonial-grade purchase, or trying to understand what separates a great tin from an ordinary one.
1. What is Uji matcha?
Uji matcha (宇治抹茶) is matcha produced within the designated Uji tea-growing region, a protected area that includes the city of Uji and the surrounding towns of Wazuka, Minami Yamashiro, and Ujitawara, all within Kyoto Prefecture.
The designation matters for the same reason that Champagne matters: just as sparkling wine from outside the Champagne region of France cannot legally be called Champagne, matcha from outside the Uji region cannot accurately be called Uji matcha. The name carries a guarantee of origin, and with that origin comes a specific combination of soil, climate, and centuries of accumulated growing knowledge that no other region in the world has precisely replicated.
Only 4% of all Japanese matcha originates from the Uji region. Less than 1% of that is certified organic. POEMS sources exclusively from within that 1%.
Why the Uji designation matters?
Think of it this way: you can buy sparkling wine for $10 a bottle, and you can buy Champagne for $100. Both are made from grapes, both are fermented, both fizz. But the origin, soil, technique and the regulatory standards behind the name 'Champagne' guarantee something the $10 bottle cannot. Uji matcha works the same way.
2. 800 years of history
Tea culture in Uji stretches back over 800 years. During the Kamakura period (1185–1333), the Zen monk Eisai brought tea seeds from China and introduced tea cultivation to Japan. Uji, with its ideal combination of river mist, fertile soil, and mountain shade, quickly became the centre of Japanese tea production.
The region's reputation grew under the patronage of the Ashikaga shogunate, who recognised Uji's teas as the finest in the country. By the 16th century, Uji was inextricably linked with the Japanese tea ceremony (Chanoyu), and matcha from Uji had become the standard by which all other matcha was judged.
In the old period, only authorised Uji tea masters were permitted to produce matcha — a restriction that preserved both the quality and the cultural weight of the designation. That culture of protection and precision continues today in the JAS (Japanese Agricultural Standards) organic certification and the strict regional boundaries of what can be called Uji matcha.
3. The "Terroir": why Uji's geography cannot be replicated
Terroir is a French wine term used to describe the combination of soil, climate, and geography that gives a product its distinctive character. Uji has terroir that no other tea region in the world matches exactly.
The region sits at the convergence of three river basins, the Uji, Kizu, and Katsura rivers which together create a natural humidity and morning mist that settles across the tea fields each day. This mist acts as a natural diffuser of sunlight, creating the gentle, indirect light that tea plants prefer. The surrounding hills trap cool air overnight, slowing the growth of the leaves and concentrating their flavour and nutrient content.
The soil in Wazuka, the specific valley where POEMS' partner farm is located, is mineral-rich and well-draining, developed over centuries of careful cultivation. Unlike mass-production matcha farms in other regions, which may use synthetic fertilisers to accelerate yield, organic Uji farms work with the natural fertility of the soil, which takes years to develop and cannot be manufactured.
4. How Uji matcha is made: the process that justifies the price
Understanding how Uji matcha is produced is the fastest way to understand why it costs what it costs — and why that cost is not arbitrary.
Step 1: Shading (Ōishita Saibai)
Approximately 21 days before harvest, the tea plants are covered — traditionally with bamboo frames and straw, now often with shade cloth — blocking out the majority of sunlight. This shading technique, first developed in Uji in the 16th century, is called Ōishita Saibai (覆い下栽培) and is one of the most distinctive practices in tea cultivation.
When deprived of direct sunlight, the tea plant cannot complete photosynthesis normally. In response, it produces more chlorophyll (to capture whatever light is available) and significantly more L-theanine (an amino acid that provides a calming, focused energy and reduces bitterness). The leaves also stop converting L-theanine into catechins — the compounds responsible for astringency — resulting in a sweeter, smoother, more umami-rich flavour profile.
| What shading does | Effect on the tea | Why it matters |
|
More chlorophyll |
The vivid, saturated green colour unique to ceremonial matcha |
Visual quality indicator: pale or yellow-green matcha has been inadequately shaded |
|
More L-theanine |
The amino acid behind matcha's distinctive calm energy focus without jitteriness |
Only found at meaningful levels in shade-grown tea |
|
Less catechins |
Reduced bitterness and astringency |
What makes ceremonial matcha smooth and sweet compared to regular green tea |
Step 2: 1st flush harvest
Only the youngest, most tender leaves from the very first flush of spring — called Ichibancha (一番茶) — are selected for ceremonial grade matcha. These first-flush leaves have spent the entire winter accumulating nutrients, and the flavour they contain is more concentrated, more vivid, and more complex than any subsequent harvest.
The stems and veins are removed from each leaf by hand. What remains is the pure leaf material, called Tencha (碾茶) — the raw ingredient from which matcha is made.
Step 3: Stone milling
This is the step most matcha buyers do not know about, and the one that most directly explains the price difference between ceremonial and other grades.
Tencha is ground on a granite stone mill at exactly 30 grams per hour. Not faster. The friction of a faster-moving mill generates heat — and heat degrades the delicate antioxidants, volatile aromatics, and vivid colour that make ceremonial matcha worth drinking. So the mill turns slowly, in the dark, in a climate-controlled room, at the same pace used on the same family farm in Wazuka for four generations.
A 30-gram tin of POEMS matcha represents one hour of stone milling — after 21 days of shading, after an entire year of growing, after four generations of learning how to do it without compromise.
The freshness guarantee
Because stone-milled matcha oxidises quickly once exposed to air, POEMS matcha is sealed immediately on-site in airtight tins after milling. Each batch is milled in small quantities to ensure maximum freshness when it reaches you.
5. How to store matcha
Matcha degrades quickly once opened. Follow these four rules to preserve its colour, aroma, and flavour for as long as possible.
- Store in an airtight container: ideally the tin it came in, resealed tightly after each use
- Keep in a cool, dry place: a pantry or cupboard away from heat sources. Not next to the kettle, oven, or stove
- Away from direct sunlight: UV light degrades chlorophyll rapidly and turns vivid green matcha a dull olive colour
- Away from strong odours: matcha absorbs surrounding smells easily. Do not store next to coffee, spices, or pungent ingredients
- Do not refrigerate: condensation forms when a cold tin is brought to room temperature, introducing moisture that clumps the powder and accelerates degradation
Consume within 4–8 weeks of opening for peak flavour, colour, and aroma. After this window, the matcha is still safe to drink but the quality will have diminished noticeably. This is why our matcha is stone-milled and sealed in small batches so the tin you open is as close to the moment of milling as possible.
6. Why Uji Matcha Matters Today
Global demand for matcha has grown dramatically. In Australia, the matcha market is projected to grow from $46.7 million in 2024 to over $81 million by 2033. But the supply of genuine Uji matcha has not grown proportionally. The region is small, the farms are family-operated, and the commitment to traditional methods limits how much can be produced each harvest.
This means that as matcha becomes more mainstream, the gap between genuine Uji matcha and mass-produced alternatives is widening rather than closing. The ceremonial grade sitting at the top of the category: stone-milled, first flush, organic, single cultivar is becoming rarer and rarer.
This is why POEMS built our direct relationships with the family farm. Not because direct sourcing is a trend, but because it is the only way to guarantee access to the 1% that genuinely justifies the name.
Ready to taste the difference?
If you are new to POEMS matcha, the Uji Matcha Discovery Set is the ideal starting point. 3 x 30 gram tins covering the full range of our Uji harvest, from ceremonial to hojicha, so you can find the expression that suits you best.
If you already know which matcha you prefer, choose from our collection below:
>> Shop Our Premium Uji Matcha Collection
Related reading:
The following POEMS blog posts go deeper on specific topics covered in this guide:
- How We Source: our direct relationship with the family farm - How We Source
- Tea & Matcha Guides: Understand the taste of tea - Tea & Matcha Guides
- Tea for Body & Mind: the benefits of tea & matcha - Tea for Body & Mind
- The Art of the Tea Table: building a ritual at home - The Art of the Tea Table
