Saigon cinnamon

Saigon cinnamon is the dried inner bark of Cinnamomum loureiroi, an evergreen of the Lauraceae family native to the central Vietnamese highlands, and despite the trade name it is technically a cassia rather than a true Ceylon cinnamon. What sets it apart is chemistry: cinnamaldehyde concentration routinely reaches 25 percent of the essential oil, the highest measured across commercial Cinnamomum species and nearly double the level found in Sri Lankan C. verum. That density translates on the palate as a hot, almost peppery sweetness with a red-hot-candy lift and a lingering woody base that other cassias -- the Chinese C. cassia and Indonesian C. burmannii -- approach but rarely match. The bark is sold as thick, hard, tightly curled quills of a dark red-brown that snap rather than shatter, and as ground powder where the grade is judged by volatile oil percentage: top lots clear 4 percent oil, against a 1.5 to 2.5 percent range for standard cassia. The flagship production zones are Tra My district in Quang Nam, Tra Bong in Quang Ngai and Van Yen in Yen Bai, where montane mist, granitic soils and decades-old trees deliver the densest bark. Saigon cinnamon is the dominant baking cinnamon in the United States and the reference spice for Costco, Walmart and most American bakery supply chains, a commercial fact often obscured by the generic supermarket label.