Ahmad Tea, a tea company based in London, England, produce the Ahmad Tea Aromatic Earl Grey Tea. Ahmad Tea produce a wide range of tea bags and loose teas such as black, green, flavored, and herbal teas.
By adding the oil extract of a bergamot orange to particular tea blends, you get Earl Grey Tea. Bergamot orange is a small citrus tree which blossoms during the winter. It is somewhat of a hybrid of sweet lime and Citrus Arantium.