Earl Grey tea does contain caffeine. This tea usually has 55 to 90 milligrams of caffeine per cup. Decaffeinated Earl Grey has 10 milligrams of caffeine per cup.
Earl Grey tea is named after Earl Charles Grey of Britain. It is a black tea with a strong, bold flavor. There are many different types of Earl Grey teas that have been created due to the popularity of the drink. Lady Grey tea is a mixture of Earl Grey with blue cornflower blossoms. London Fog is a latte beverage made of Early Grey tea, a splash of milk and vanilla syrup.