August 4, 2026

Coumarin in Cinnamon: A Glimpse into the Autumn Harvest in Lao Cai

Leaves rustle gently underfoot as the late autumn breeze whispers through our cinnamon forests here in Xuan Ai. Farmers, including myself, are busy with very hands-on work this time of year. We’re harvesting cinnamon bark, and I wanted to take a moment to talk about something crucial: coumarin in cinnamon.

What is Coumarin, and Why Does it Matter?

Coumarin in cinnamon is a topic that comes up often, and for a good reason. Coumarin is a natural compound found in various plants, including cinnamon. It’s known for its sweet-smelling aroma but also comes with some health considerations. Here in Lao Cai, we’re conscious of how we cultivate and harvest to ensure our cinnamon remains top-notch.

This Month on the Farm: Balancing Weather and Harvest

Autumn in Lao Cai means cooler temperatures ranging between 15-20°C. Perfect for cinnamon. The mountain air at altitudes of 200-1000 meters creates an ideal environment for the trees. Right now, the trees stand sturdy, their bark rich in oil, averaging between 3-5% — prime for harvest. We carefully peel the bark using curved knives, letting it sun-dry on bamboo racks for 3-7 days. It’s hard work but rewarding when you see the quality.

Harvest Time: How We Ensure Quality in Every Strip

We, the farmers of Xuan Ai, focus on maintaining the quality of our cinnamon, especially when it comes to coumarin levels. Autumn harvests, like now, yield higher oil content, which means richer flavors and aromas. But we’re also careful, ensuring that our methods respect the environment and our health. Every bark strip, from trunk to branch, is used purposefully, with nothing wasted — even scraps become powder.

5 Things That Affect Coumarin Levels in Our Cinnamon

  1. Climate: Cool temperatures during autumn enhance oil concentration.
  2. Altitude: Higher altitudes contribute to richer essential oils.
  3. Harvesting Practices: Timing in autumn is key to optimizing oil.
  4. Soil Quality: Rich soil in our region nourishes the trees.
  5. Tree Age: Cinnamon trees aged 15-25 offer the best quality.

Coumarin in Cinnamon: A Healthy Balance

Coumarin content varies between different types of cinnamon, but with our carefully monitored cultivation practices, we ensure that our Vietnamese cinnamon offers a balanced and safe flavor profile. Every stick and powder particle we produce reflects generations of expertise from our village. You can taste our passion and effort in every bite.

For those interested in experiencing this firsthand, I invite you to learn more about our story and how we maintain the integrity of our cinnamon. You can also explore our Vietnamese cinnamon.

As we wrap up this month’s activities, I feel grateful for this land and the people who nurture it alongside me. Coumarin in cinnamon is just a part of the bigger picture. But understanding it helps us continue to produce cinnamon we’re proud of, cinnamon that tells the story of our home in Lao Cai.