What is Espresso?

So what exactly is espresso coffee? The following definition should give you some idea.

"… espresso is a colloidal dispersion produced by emulsifying the insoluble oils in ground coffee. These oils don't normally mix with water. Under intense pressure (9-10 bars) generated by commercial espresso machines, oils are extracted from ground coffee, formed into microscopic droplets, and suspended in liquid coffee concentrate. It is this emulsification of oils that distinguishes the espresso from strong coffee. It markedly alters the properties of the beverage in terms of its mouthfeel, density, viscosity, wetting power, and foam-forming ability. Volatile vapours produced during espresso extraction hold coffee's aroma and are captured in tiny bubbles of the crema. These aroma molecules, later released in the mouth as espresso is consumed, find their way to the nose through the pharynx. These oil droplets also attach themselves to the taste buds and slowly release volatile compounds until after the espresso is long gone."

Coffee Consumption Can Reduce Risk of Parkinson’s Disease

The debilitating condition that affects boxing great Muhammad Ali and actor Michael J Fox. Over a 30-year period nine separate studies have found a link between coffee consumption and reduced risk of Parkinson’s. Six of those studies showed a reduction in the incidence of the disease of over 50% in those who were regular coffee drinkers.