The London Cuppa English Breakfast Emrok Leaf Tea is strong, bold &black tea. It is a robust, rich & aromatic English tea, sourced directly from high elevation tea plantations. Breakfast teas and particularly English breakfast blends are the most popular type of tea in the UK. English Breakfast Tea is known for its bold flavor and its relatively high caffeine level. The flavor is often described as rich, robust, full-bodied and malty or brisk.