On Nov 6, 10:11 pm, 33223 > wrote:
> Making Good Espresso
>
> The espresso machine has a metal filter basket filled with finely
> ground coffee which is called a shot. The espresso shot is then patted
> or tamped down to compress the grounds into a dense puck. The shot is
> locked under the brewer and then heated water is forced through the
> fine grounds. The pressure of the tamping and the filtered water,
> combined with how fine the coffee grinds are, will influence the
> quality of the final espresso beverage. A double shot of espresso
> should make 2 to 2.5 ounces of beverage in 20 to 25 seconds, and
> should be about 160 to 165 degrees in the cup. This is generally
> considered the recipe for a quality cup of espresso. An espresso
> machine also has a steam wand that is used to froth milk for milk-
> based espresso beverages like cappuccinos and lattes. Different
> machines will vary in style, price, features, speed, and consistency,
> and will produce different qualities of espresso and espresso
> beverages.
>
> http://www.askstar.com.cn/health/Buy...so-Machine.htm