June 2026
The 4 Universal Commercial Grades of Matcha
While no standardized international government grading body exists, the global tea industry adheres strictly to a de facto four-tier hierarchy determined by harvest timing, shading duration, milling methodology, and chemical composition:
| Grade | Harvest / Process | Visual Quality | Key Attribute |
|---|---|---|---|
| Ceremonial | First Flush Hand-Picked | 100% Stone-Milled | Max Chlorophyll & Amino Acids | Zero Bitterness |
| Premium | First Flush Dominant | Vibrant Emerald | Dynamic Latte / Balanced Umami |
| Cooking | Later Harvest Leaves | Robust Astringency | High-Heat Resilience / Cost-Effective |
| Commercial | Industrial Master Blend | Machine-Milled | Standardized Food Service | Maximum Economy |
Grade I: Ceremonial Grade
Target Application: Traditional tea ceremonies (Koicha thick tea / Usucha thin tea), formal hospitality, and boutique gifting.
Manufacturing Standards: Crafted exclusively from first flush spring buds grown under extended shade. Milled slowly via granite stone wheels.
Sensory Profile: Electric, luminous jade green. Exceptionally high amino acid concentration creates profound umami sweetness with virtually zero astringency.
Grade II: Premium Grade (Café Latte Grade)
Target Application: High-end boutique café beverage formulations and daily personal consumption.
Manufacturing Standards: Utilizes elite first flush foliage harvested slightly later in the spring cycle.
Sensory Profile: Vibrant emerald green. Engineered with a dynamic structural balance of sweet umami and pleasant briskness designed to cut cleanly through dairy and oat milk bases without losing aromatic clarity.
Grade III: Cooking Grade (Culinary Confectionery)
Target Application: High-heat commercial baking, pastry patisserie, chocolatiers, and craft gastronomy.
Manufacturing Standards: Curated from mature second flush and autumn tea foliage.
Sensory Profile: Deep olive-green. Contains elevated catechin levels that provide a sharp, punchy astringency. This robust structural bitterness is specifically designed to harmonize with heavy sugars, fats, and dairy creams while retaining bold green tea flavor under intense baking temperatures.
Grade IV: Commercial Grade (Food Processing & Industrial)
Target Application: Large-scale manufacturing, ready-to-drink (RTD) bottled beverages, industrial ice cream production, and global chain food service.
Manufacturing Standards: Master-blended across multiple seasonal harvests and machine-milled for extreme output efficiency.
Sensory Profile: Standardized muted green. Prioritizes absolute chemical stability, color preservation against citric acids/light degradation, and aggressive cost-efficiency for mass-market commercial scaling.