Citronella is distilled from dried grass. It tastes like a combination of fruit fragrance and lavender. Its height is about 60 centimeters. Mainly produced in Sri Lanka, Guava, Madagascar and South Africa. Among them, Guawa is of good quality and has been widely used commercially in this century. In recent years, it has been favored and used in many dishes, such as Dongyingong and red curry products.