The black tea English Breakfast by Clipper, from Assam and Ceylon varieties, has a high caffeine content and is made from the leaves of a shrub called Camellia sinensis. It produces a dark, copper color and has a stronger, more intense flavor than other types of tea. This is a certified organic product, where no pesticides or chemical fertilizers have been used during its production. The package contains 20 individual tea bags with strings, which have not been bleached.