Perhaps the most well known Oolong tea this Formosa Oolong is usually what one would be served in a traditional Chinese restaurant. A slight nutty flavor is the product of the roasting process that this tea goes through. Nutty and slightly vegetal. Oolong tea is believed to promote an increased metabolism. | Formosa Oolong is a smooth and slightly nutty cup of oolong tea. Steep 4 minutes or to taste.