I remember it like it was yesterday, in an old Ford at a drive in movie, Sweet November (1968) -- and as I leaned in for a kiss, my date said:

"The three dispersed phases in espresso are what make this beverage unique. The first dispersed phase is an emulsion of oil droplets. The second phase is suspended solids, while the third is the layer of gas bubbles or foam. The dispersion of very small oil droplets is perceived in the mouth as creamy. This characteristic of espresso contributes to what is known as the body of the beverage. These oil droplets preserve some of the aromatic compounds that are lost to the air in other coffee forms. This preserves the strong coffee flavor present in the espresso."

I think Sandy Dennis died and Anthony Newley was sad, but we missed a lot of it because the windows got all steamed up. 

Now in the present day and pondering -- 

How do you brew Espresso -- ?