## Matcha’s Worst Enemies: Heat, Light, and Oxygen
Unlike robust black teas, matcha is incredibly delicate. Once the tencha leaves are stone-ground into a fine powder, the surface area increases exponentially, making the tea highly susceptible to oxidation. Exposure to heat, UV light, or oxygen will rapidly degrade the vibrant green color into a dull yellow and turn the sweet umami flavor bitter.
## Export Logistics Best Practices
To maintain ceremonial quality during international shipping, several precautions are mandatory:
1. **Nitrogen Flushing:** Before sealing, premium matcha bags must be flushed with nitrogen to remove all oxygen.
2. **Opaque, Airtight Packaging:** The powder must be sealed in heavy-duty, light-blocking foil pouches.
3. **Temperature Control:** While matcha does not require the strict 0°C cold chain of Wagyu beef, it should absolutely be shipped via air freight to minimize transit time, and stored in cool, climate-controlled environments away from direct heat sources.
## Wagyu Ninja’s Quality Guarantee
When Wagyu Ninja handles your matcha export, we oversee the packaging process at the farm level. We ensure proper nitrogen sealing and expedite the air-freight shipping process so your matcha arrives as fresh and vibrant as the day it was ground.
Karen Hashimoto
Curator & Export Compliance Director · WAGYU NINJA
Karen sources directly from Japanese producers and handles export compliance for B2B buyers in 50+ countries. Based in Fukuoka, Japan. @konnichiwa.karen