Middle East Tensions Drive Up Matcha Production Costs in Japan — What U.S. Buyers Should Know

Japan's new tea season has arrived — but for matcha and green tea producers, this year's harvest comes with a serious warning: surging material costs tied to global oil markets are threatening the economics of traditional Japanese tea production.

The Middle East Crisis Reaches Japan's Tea Fields

According to a May 2026 report by TBS NEWS DIG (JNN), tea farmers in Japan are facing sharp cost increases across nearly every stage of matcha production, driven by rising petroleum and naphtha prices linked to ongoing instability in the Middle East. Masahiro Okutomi of Okutomien, a long-established tea farm in Sayama City, Saitama Prefecture that has operated since the Edo period, described the situation as deeply unsettling: "We're receiving price-increase notices from suppliers, and it's hard to know what comes next."

Every Stage of Matcha Production Depends on Oil

What makes this situation particularly acute for matcha is how petroleum-derived materials are embedded throughout the entire production chain:

• Shading nets (Kanreisha): High-grade matcha and gyokuro require tea leaves to be covered with shading nets for approximately three weeks before harvest. This light-blocking process — known as kabuse or shading cultivation — suppresses photosynthesis and boosts the concentration of umami compounds (L-theanine). These nets are made from vinyl (a petroleum-derived material), and prices are expected to rise 20–30%.
• Heavy oil for steam and drying equipment: After harvest, tea leaves must be steamed to halt oxidation and then dried — both processes powered by heavy oil. Fuel costs have risen nearly 30% compared to autumn 2024.
• Storage containers (Aracha bags): Semi-processed tea leaves called aracha ("rough tea" — the first-stage processed leaf before final refinement) are stored in airtight, moisture-resistant containers made from petroleum-derived plastic to preserve freshness and prevent oxidation.
• Packaging materials: Final product packaging is largely made from naphtha-derived materials, meaning cost pressure extends all the way to the consumer-facing product.

Okutomi summarized the operational threat bluntly: "If we can't get the materials we need when we need them, production stops. We'd have to revise all of our plans."

New Tea Season Quality Remains Strong — For Now

Despite cost pressures, the 2026 shincha harvest is reported to be of high quality. Shincha (literally "new tea") refers to the first flush of the year, harvested in spring, and is prized for its fresh aroma, rich umami, and delicate sweetness. Sayama tea — grown in Saitama Prefecture and known for its deep flavor and fragrance — is the subject of this season's reports, and farmers say the tea itself has come out well.

Matcha Boom Meets Supply-Side Pressure

This supply-side strain comes at a time of surging global demand for Japanese matcha, particularly in the U.S. market. A related report from Shimane Prefecture (NTV/日本海テレビ, May 12, 2026) noted that shincha prices have risen approximately 1.5x year-over-year in some regions, as the global matcha boom has caused farmers to shift cultivation away from sencha (standard green tea) and toward matcha-grade tencha leaves — creating new supply and pricing tensions across the broader Japanese tea industry.

What This Means for U.S. Matcha Importers

For U.S. café owners, beverage directors, and wholesale buyers sourcing Japanese matcha, these developments signal that price stability at origin cannot be taken for granted in the near term. Specific implications include:

• Expect gradual price adjustments from Japanese wholesalers and producers, reflecting 20–30% increases in input costs at the farm level.
• Lock in contracts early where possible — particularly for ceremonial-grade and premium culinary-grade matcha, where shading and careful processing (the most cost-impacted steps) define quality.
• Transparency from your supplier matters: Ask your Japanese matcha supplier directly how rising material costs are being managed and whether supply continuity can be guaranteed through the 2026 season.

The global matcha supply chain is tighter than it appears. Understanding what happens inside Japan's tea fields — from shading nets to aracha storage — gives U.S. buyers the context they need to make informed sourcing decisions.

Source:
TBS NEWS DIG Powered by JNN / Yahoo! News Japan (May 14, 2026): https://news.yahoo.co.jp/articles/b83b0ea1f2de0a90109a0bf75b8f517a0d3c1ead