Most everyone has heard of it, but does everyone know what it is or how it is supposed to taste? It, in this case, is coffee espresso and most experts agree that it needs to be extraordinarily sweet, but also with a flavor close to fresh ground coffee, and it calls for a potent or robust aroma.

The crema, which is the thin layer of foam at the top of the cup, needs to be a dark red/brown color and smooth, yet also thick. They say that a "perfect" one is enjoyable straight without any type of additives, yet should also be bold enough that the flavor doesn't vanish in milk.

Finally, there should be an aromatic and pleasant aftertaste that stays on the palate for several minutes after drinking.

If you are interested in brewing perfect espressos from home, then there are some interesting tips available. And, should any of these particular factors be left out, you will be left with a less than perfect tasting cup of hot coffee drink.

The first rule is rule is that the coffee espresso blend should be fresh and it is recommended that it should be used within four days after roasting. And be careful because many times it will be roasted too dark resulting in a very bitter brew. So roast light in order to preserve the sugar and aroma.

In order to maintain perfect extraction of the gourmet coffee beans, a burr grinder is preferred. Also, do not just grind a bunch at one time; only grind to order ensuring freshness. The oils that are protected inside of the bean become exposed to the air, which then can become stale.

There are very explicit instructions when it comes to making perfect espressos and when a coffee bar server, or barista, is being trained it is a very detailed instruction. The coffee grinder with roasted coffee beans should only be engaged for about 15 to 20 seconds and only when a shot has been ordered to ensure that the coffee is fresh.

Tamping the coffee is actually considered an art in some circles and should be done by taking the tamper in one hand and pressing it gently on the ground coffee that is in the porta-filter all the while tapping the filter to make sure the coffee is evenly distributed.

The entire process should only take about 25 to 29 seconds and you will have made the perfect cup.