Why First Harvest Matcha Matters

Tea is a seasonal product. Like wine, olive oil, or any agricultural product worth caring about, the timing of harvest has a profound effect on what ends up in the cup. In matcha, the difference between first harvest and later harvests is not subtle, it is one of the most significant quality determinants in the entire production process.

The Annual Cycle of Tea

In Japan's matcha-producing regions, the tea year follows a predictable rhythm. The plants spend the winter months dormant, accumulating nutrients in their root systems. As spring arrives and temperatures rise, the plants push out their first growth of the year, young, tender shoots that carry everything the plant has been storing through the cold months.

This first growth is harvested in April and May, the ichibancha, or first flush. It is the most prized harvest of the year, and the one from which all A-Grade ceremonial matcha is made.

Subsequent harvests, nibancha in summer, sanbancha in autumn, use leaves that have grown under full sunlight for a longer period, during which the plants produce higher levels of catechins (which contribute to bitterness and astringency) and lower levels of amino acids (which contribute to sweetness and umami). The result is a measurably different leaf, and a measurably different cup.

What First Harvest Leaves Contain

The difference between first harvest and later harvest tea is chemical as much as it is sensory. First harvest leaves contain higher levels of L-theanine, the amino acid responsible for matcha's characteristic calm alertness and its umami depth. They also contain more chlorophyll, contributing to the vivid green colour that distinguishes ceremonial grade matcha.

Later harvest leaves, grown in stronger sunlight over a longer period, develop more catechins, particularly EGCG. This produces a leaf that is more astringent and bitter, with a less complex flavour profile. These leaves are well suited to culinary applications where they will be mixed with other flavours, but they cannot match first harvest leaves for drinking quality.

The Role of Shading

First harvest leaves used for ceremonial matcha are shaded for three to four weeks before harvest, adding a further layer of quality distinction. The shade cloths block direct sunlight, slowing photosynthesis and causing the plant to produce even more chlorophyll and L-theanine in response. This deepens the green colour and intensifies the sweet, umami character that defines great ceremonial matcha.

Later harvests are not shaded in the same way, which is one reason the quality distinction between first and subsequent harvests is so marked.

How to Know What You Are Buying

A quality matcha producer will specify the harvest on the packaging. Look for first harvest, ichibancha, or spring harvest alongside the harvest year. If this information is absent, it is likely that later harvest leaves, or a blend of harvests, were used.

All of our matchas are from the 2025 spring first harvest. Our Ceremonial Matcha from Yame and our single-cultivar Okumidori and Samidori from Wazuka are all ichibancha, because that is the only harvest that produces the quality of cup we want to offer.

How This Affects What You Buy

When you are choosing ceremonial matcha, the harvest information is one of the most useful pieces of data on the packaging. First harvest, ichibancha, or spring harvest, alongside the harvest year, tells you that the producer is working with the best leaves the season has to offer and is transparent about when they were harvested.

The absence of this information is equally telling. If a product does not specify harvest, it is almost certainly using later harvest leaves, or a blend of harvests, and the producer has decided it is better not to say so.

A Note on Freshness

First harvest matcha is at its best consumed within a year of harvest for sealed product. This is why buying from a source that specifies the harvest year matters, it tells you not just the quality of the harvest but how old the product is. Matcha that was harvested two springs ago is not the same product as matcha from the current year's spring, even if both are described as first harvest.

All our matchas carry the 2025 harvest year. We turn our stock to ensure what reaches you is fresh, and we will update the harvest year when the 2026 spring harvest arrives. Our Ceremonial Matcha, Okumidori, and Samidori are all first harvest, because that is the only harvest that produces a cup worth preparing with care.