Letha Rosario. Coffee Machines. December 18th , 2017.
A wonderful traditional Italian concentrated coffee beverage is espresso. This is brewed by forcing hot water (195 degree Fahrenheit) at high pressure (90 bars) through special coffee ground to a consistency between extremely fine and powder. The appliances that are used to prepare the beverages are the espresso machines. The knowledge and efficiency in making the finest espressos is considered as a craft and the baristas who are adept in using the espresso machines professionally are regarded as skilled craftsmen in this light.
The following information is intended to give general information on the range of commercial coffee machines that are used in the Coffee Industry today. I apologise in advance if Im Teaching you how to suck eggs. Having been a consultant involved in the Coffee World for some years, advising clients and helping them choose the right equipment to suit their needs. Believe me when I say that there have been many people who have asked the question, "Whats an egg?" Facts are facts so the following is my interpretation and how I advise clients.
One that is not as popular as all the others is the vacuum machine. They come in many shapes and sizes, yet they are more alike than they are different. This system heats the water in the lower chamber creating a water vapor. This increases the pressure in the lower chamber and forces the water upward into the upper chamber that you add just before the water begins to rise. Brew for about 1.5 minutes then remove from heat, the gases in the lower chamber cool and draws the brewed coffee downward via suction caused by a partial vacuum that ensures accurate extraction of oils and caffeine for a cleaner unit without the bitter taste.
In the present era, it is almost unimaginable to think of a book store or a browsing hall without a coffee machine at a corner or featured most prominently. With so many people hooked on to this drink big time, the coffee machine has slowly started finding its way through schools, colleges, workplaces, malls and even petrol pumps. Many institutions and companies offer free service to their patrons while some of them charge a negligible fee for using the facility. Overall, walk into a shopping mall or a complex arcade and there are more chances than ever for you to find Commercial Coffee Makers somewhere in the backdrop.
There is a separate Grinder, which usually sits on top of a Knockout Drawer which is used for the spent coffee pucks. Although most Traditional Espresso Machines have automatic dosing these days, the coffee making process is by hand (Artisan). The coffee shot; single or double is prepared using the machine. The milk is foamed using the machine Steam Wand. The coffee is then put together to make any one of the most popular coffees. Cappuccino, Latte, Mocha and Macchiato etc. All of the preparation adds to the "Theatre" of the Coffee Culture. Customers have a higher perception of an "Artisan Coffee" and are willing to pay more. Training is required to ensure quality and consistency.
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