Meet the t-Series Designer Gourmet Tea by Dilmah A tea for every occasion. Dilmah t-Series presents a collection of teas that are known around the world only for their excellence. Teas so different that there is a tea for every mood. The range presents a vast array of designer gourmet teas including Very Special Rare Tea like the Ceylon Silver Tips and Seasonal Flush. The Seasonal Flush by t-Series is a tea so rare that it is produced only as a result of a seasonal phenomenon that occurs twice a year.