Can you heat matcha powder directly to a boil?

It is not recommended to directly heat or boil matcha.

Reasons:

• High temperatures (above 80°C) destroy nutrients in matcha, such as catechins and amino acids, reducing its antioxidant properties.
• Boiling makes matcha bitter and causes it to lose its characteristic umami and fresh aroma, compromising flavor and quality.
• Matcha is a fine powder; direct boiling may cause clumping or sedimentation, making it difficult to dissolve evenly.

Proper Brewing Method:

1. Water Temperature Control: Use warm water at 70-80°C (avoid boiling water).
2. Steps:
   • Place 1-2 grams of matcha powder into a tea bowl.
   • Add a small amount of water (about 20-30ml) and whisk rapidly with a bamboo whisk (chasen) until frothy.
   • Add the remaining water (total 60-80ml) and continue whisking until smooth and lump-free.
3. Note: Avoid prolonged heating; consume immediately after brewing to preserve flavor.

In Culinary Applications:

• When used in baking, desserts, or beverages (e.g., matcha latte), matcha can be added to hot liquids but temperature must be controlled:
  • Add to heated milk or syrup at the final stage, keeping temperatures below 80°C.
  • Avoid direct boiling; if heating is required, use low heat and stir briefly.
• Example: When making matcha sauce, boil other ingredients first, let cool slightly, then mix in matcha powder.