Crisper, spicy and much warmer than cinnamon of other origins, cinnamon is grown in Van-Yen district, Yeu Bai province, Vietnam. Vietnamese cinnamon is the strongest cinnamon in the world. The spiciness comes from cinnamaldehyde, an essential oil found in all types of cinnamon. The highest cinnamaldehyde content is found in cinnamon grown in Vietnam, giving this cinnamon its unique spicy taste and sweet aroma.