Jamaica Cerasee Bitters also known as “sersi tea”. This is one of the most widely used herbal teas from Jamaica. Momordica Charanta; This herb holds true to it potency and effectiveness. The vine is grown all over Jamaica and is used by the majority of the people who can testify of how great this tea makes you feel. Drink it hot or let it cool and have it at room temperature. Be warned it is very bitter. This is a loose leaf tea.