Japanese Matcha Harvest Seasons Explained: From First Flush to Your Cup

Every spring in Japan, the tea fields wake up. That first pick of the year, ichibancha, is where ceremonial matcha starts.

When tea farmers pick for the first time each spring, that leaf still has a long way to go. Before a pouch reaches us in Australia, it has to be steamed, dried into tencha, sorted, stone-milled, packed and shipped. Their timing, and how gently they treat the plants, decides whether next year’s cup is as good as this year’s.

I get asked about this a lot, especially when first-harvest lots sell through. So I wanted to walk through the harvest names, the chemistry behind the flavour, and the real timeline from field to Purematcha.

Worth reading next: Ceremonial vs culinary matcha · Organic Japanese tea farming · Matcha Comparison Chart

At a glance

The four harvests, in plain English

Japanese growers name harvests by season. Those names are useful because they track flavour, chemistry and how the tea gets used.

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Exact dates move with region, cultivar and weather. Southern Kagoshima often runs earlier than the cooler hills around Uji.

You will also hear shincha (新茶), “new tea”. That is the celebrated early spring leaf, traditionally tied to the 88th night of spring. For matcha drinkers, the practical takeaway is simple: ceremonial-grade powder almost always starts with first-harvest leaf.

EISAI Organic Ceremonial Pure Matcha Powder

First-harvest ceremonial Uji matcha. This is the flavour profile ichibancha is known for.

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KIYOKA Saemidori Organic Ceremonial Matcha Powder

Single-cultivar Saemidori ceremonial matcha. Sweet, smooth first-harvest character.

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Why first harvest tastes different

Through autumn and winter, the plant stores nutrients in its roots and wood. When the spring buds push, those reserves concentrate in the tender new leaves.

That is why first flush usually runs higher in amino acids, especially L-theanine, and lower in bitter catechins. Later flushes flip that balance. More sun-grown bitterness. Less umami.

Autumn leaves are thicker and tougher. Spring leaves are soft and thin. In the highest grades, they are almost edible raw.

Even inside first harvest, timing matters. Wait too long and amino acids drop while the leaf toughens. Pick too early and the yield collapses. Farmers judge by touch, cultivar and the year’s weather. A warm early spring can push the whole country to pick days sooner than planned.

Before the pick: shade and plant care

Matcha does not come from ordinary open-field sencha leaf. Plants grown for tencha (碾茶), the leaf that will be stone-milled into matcha, are usually shaded for about three weeks or more before harvest. Top lots sometimes go longer.

Blocking light pushes the plant to make more chlorophyll and hold onto amino acids instead of converting them into bitter catechins. That shaded aroma is called ooika.

The common shading setups, from simplest to most labour-heavy:

1. Jikakabuse: cloth draped straight onto the bushes
2. Kanreisha: synthetic cloth on a canopy above the plants
3. Honzu: traditional reed and straw screens on a shelf (rare, expensive, beautiful air flow)

Shelf shading over the tea rows before harvest. This is the step that builds matcha’s colour and umami.

Bush shape matters too. Many fields are trimmed into neat hedges for machine harvest (une-shitate). Some of the finest lots grow as freer individual bushes (shizen-shitate) and get hand-picked once a year. Slower. Costlier. Gentler on the plant.

Two-person handheld harvesters are common on terraced matcha fields. Much faster than hand-picking, and still skilled work.

After the leaves are picked

Picking is only the start. After the leaf comes off the bush, there is still a real stretch of processing before it becomes matcha you can whisk. Steaming, drying, sorting, blending and milling all take time, and a tea master will taste and adjust lots until the flavour is where it should be. That is why first-harvest matcha does not arrive the moment the shade nets come off.

Inside a partner factory in Japan: leaves on the line after picking, including air separation and conveyor sorting. Shortened from longer factory footage.

1. Same-day steaming

Fresh leaf oxidises quickly. Japanese green tea is steamed within hours of picking to lock colour and stop browning. When a field comes in, factory teams often work long shifts.

2. Drying into tencha (not sencha)

Unlike sencha, tencha is not rolled into needles. The leaves are dried carefully, then stems and veins are removed so only the soft leaf remains. That de-stemming step is labour-intensive. It is one reason ceremonial powder costs more, and why it mills more finely.

3. Sorting, blending and resting

Refined tencha is graded and sorted. Some lots stay as a single cultivar. Others are blended by a tea master tasting through the season’s leaf until the balance of umami, sweetness and aroma is right. That work is not rushed. Finished tencha is usually held in cool, dark storage, and many producers mill close to packing so the powder is not sitting around oxidising.

4. Stone milling into matcha

Traditional granite mills grind slowly. Roughly 30 to 40 g per hour per mill is a common figure. Quality over speed. Once it is powdered, matcha is far more vulnerable to light, air and moisture than whole-leaf tea.

5. Vacuum packing at source

Premium lots are filled into pouches, weighed and vacuum-sealed in Japan before freight. Same idea as our factory packing behind-the-scenes. Freshness starts at the mill, not weeks later in a warehouse.

6. Export to us

Air freight, customs and Australian warehousing add more days. A realistic path for first-harvest ceremonial matcha looks like this:

So when someone asks “when is first harvest available?”, the honest answer is: leaf is picked in spring. The flavour work, milling and shipping still take time after that. Finished pouches usually reach us weeks later.

Final touches on our pouches at source — opening, sealing and the finished packs coming off the line.

Weeks of shading and years of field work sit behind every pouch, long before the mill starts.

Living tea plants, and what over-harvesting costs

A tea bush is not an annual crop. Camellia sinensis is a perennial evergreen. On a well managed farm it can live many decades, often in the 50 to 100+ year range, if the roots are fed, pruning is restrained, and the plant is not stripped bare every flush.

What care looks like in practice:

• Winter rest after autumn pruning and soil work
• Selective harvests. Top ceremonial fields may only take one major pick a year
• Less constant stress from aggressive machine shaping and too many summer cuts
• Shading only when the plant is strong enough to handle it

If a field is overworked, three or four heavy harvests with no recovery, the plant’s stored nutrients get depleted. You get more leaf this year. Next spring you often get a weaker flush, thinner umami and declining yields.

That is why serious matcha farming is stewardship as much as production. Cheap volume leaf usually comes from systems built for bottled tea and culinary powder, not from bushes nursed for decades of first-flush quality. More on the farm economics in our organic Japanese tea farming guide.

How long before a new tea field can make matcha?

Starting a new matcha field is a long game. Japan mostly grows from cuttings of named cultivars, not random seed. For matcha you will see names like Saemidori, Gokou and Okumidori. Shade structures, cultivar choice and harvest method also need to be in place before the leaf is worthy of ceremonial milling.

Plant age

That timeline is why sudden global demand cannot be met by planting a field this spring and shipping powder this autumn. True first-harvest tencha is capped by biology as much as by factories.

GOKOU Organic Ceremonial Matcha (Gokou Single Cultivar)

Single-cultivar ceremonial GOKOU. An example of matcha-focused breeding and harvest discipline.

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10g KINARI Culinary Matcha Powder Sample

Later-harvest culinary KINARI. This is where third and fourth flush leaf often belongs.

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How to read harvest language on a label

Use our Matcha Comparison Chart if you want to compare Purematcha lines by harvest, grade and best use.

Explore first-harvest and everyday matcha

Ceremonial / first flush: EISAI · GOKOU · Ceremonial Matcha Trio

Compare the range: Matcha Comparison Chart · All matcha

Learn more: Ceremonial vs culinary · Organic tea farming · How we pack at source

Thank you for reading, and for caring where your tea comes from.