The only difference between the espresso coffee bean and the coffee bean is the process by which the bean is processed before it is converted into a coffee drink. The espresso coffee bean was originally developed in Milan in Italy during the early 20th century, and up until the mid 1940s, espresso could only be produced through steam pressure. The espresso coffee bean has defining characteristics which set it apart from other coffee beans, including a thicker consistency than standard drip coffee, a higher amount of dissolved solids per relative volume, and a serving size that is usually measured in 1 fluid ounce shots.
Espresso is a volatile and chemically complex by nature, and many of its chemical components degrade quickly because of a loss of temperature and due to oxidation. The most distinguishing feature that sets espresso apart from drip coffee and the traditional coffee bean is “crema”, which is a reddish brown foam that is composed of vegetable oils, sugars and proteins that floats on the surface of the espresso shot.
All of the flavors and chemicals in a typical cup of drip coffee are concentrated as a result of the high pressure brewing...