Cumin known for its earthy aroma, cumin is used either in its raw form or cooked in hot oil or ghee to release its aroma. It also imparts a very unique and smoky flavour to food. It has been proved in some studies that the presence of caffeine (the stimulating agent), and the richly aromatic essential oils make cumin an ideal anticongestive combination for those suffering from respiratory disorders such as asthma and bronchitis.