During the roasting process, a large amount of carbon dioxide is produced in the coffee beans, most of which will be emitted during the cooling process, and a few will continue to be kept internally, and these gases will be released when the coffee powder is ground, so coffee must be made as soon as possible after grinding. When hot water strikes coffee powder under Espresso pressure, it will emulsify the insoluble oil of coffee powder and at the same time, it will be supersaturated.
2014-10-25 Coffee knowledge Espresso Coffee Encyclopedia CremaBy observing Crema, we can judge the freshness of coffee beans, the completeness of coffee extraction and the uniformity of coffee extraction. How to tell if the coffee beans are fresh: although you can tell that the beans are fresh when you observe a lot of foam, there is also a possibility that Robusta is high. So we can observe the state of foam precipitation instead. If they are very fresh beans
2016-07-01 Correct Storage Coffee beans purchase quality Coffee method Baking Italian blendingDuring the roasting process, a large amount of carbon dioxide is produced in the coffee beans, most of which will be emitted during the cooling process, and a few will continue to be kept internally, and these gases will be released when the coffee powder is ground, so coffee must be made as soon as possible after grinding. When hot water strikes coffee powder under Espresso pressure, it will emulsify the insoluble oil of coffee powder and at the same time, it will be supersaturated.
2014-10-28 Coffee knowledge coffee basics Espresso CremaThe beauty of concentration, the soul of coffee: Espresso Espresso is known as the soul of coffee. With a perfect cup of Espresso, we can make all kinds of coffee that are popular all over the world, such as Cappuccino, Mocha and Latte. It is said that Espresso originated in Cairo, Egypt in the early 15th century, but it was Italy that really carried it forward. Now Es
2014-09-16 Espresso made by Espresso"Italian concentrate" is a multiphase drink that can be made with roasted and ground coffee powder and water. The concentrated surface is covered with a layer of foam made of tiny bubbles and has a special imprint like a stripe on a tiger's tail. At the bottom of the foam are particles with tiny emulsified oil droplets that dissolve sugars, acids, proteins, caffeine, and suspension.
2016-07-29 Analysis Italian concentrated Coffee Fat Crema blending Coffee beans BrazilBy observing Crema, we can judge the freshness of coffee beans, the completeness of coffee extraction and the uniformity of coffee extraction. How to tell if the coffee beans are fresh: although you can tell that the beans are fresh when you observe a lot of foam, there is also a possibility that Robusta is high. So we can observe the state of foam precipitation instead. If they are very fresh beans
2016-07-01 China Coffee Market Yunnan planting Price pass observe CremaNote: prepare a glass of ice water before drinking and drink a sip of ice water before drinking coffee to fully stimulate the taste buds. 1. Observe the coffee beans. Observe the appearance, uniformity, blending type, roasting degree, smell, etc., and have a general understanding of coffee beans. 2, grinding. Look at the grindness of the coffee beans and smell the aroma. The degree of grinding of coffee beans largely determines a cup of espress.
2014-09-11 Coffee knowledge Italian concentrate EspressoColor: the aromatic oil is dark brown or hazelnut with a red mark. Sometimes there are even light stripes. Sex: aromatic oils are 2-4 mm thick, with slight or no buttonholes. Persistence: the aromatic oil does not fade for a long time, leaving a brown circle on the inside edge of the cup after drinking coffee. Concentration: strong, rich, strong aroma. Fine: elegant
2014-11-08 Coffee knowledge boutique coffee science coffee technologyIn short, Espresso is a combination of beans baked in depth of about 8 grams. After fine grinding and using an Italian coffee machine, the 30cc quickly extracted with golden crem is extracted in about 25 seconds under the pressure of water vapor at 9 atmospheric pressure and a temperature of about 90 degrees.
2022-06-28 Coffee knowledge Italian concentrate Espressoone。 Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Observe the shape of the CREMA of coffee flowing out of the handle of the filter, whether it is a thick and smooth flow of Q.CREMA too much water, not a smooth flow, but a possible reason for splashing off the handle. Observation gram
2014-09-09 Coffee knowledge espresso Espresso coffee encyclopediaExcessive extraction if the crema is dark brown and has white spots in its center, the black hole coffee powder is excessively ground, the extraction temperature is too high, the pump pressure is too high, the extraction temperature is too high, the filling pressure is too high, the coffee temperature is low, the temperature is lower than 78 degrees coffee cup, the supercooled filter mesh is filled with a plate, the supercooled grinding particle size is too fine, the coffee extraction is insufficient, the crema color is light, the consistency is very low, the coffee powder consumption is very low.
2015-11-07 Coffee need pay attention some problems extraction excessive extraction ifItalian 4m (barista, bean grinder, blending, and espresso machine) includes the key factors in the formation of espresso. The questions often asked on home-barista.com forums often focus on the last factor: which Italian machine should I buy? Once a buyer limits their list to a few options, family coffee hands often start to get pregnant.
2015-11-09 How to diagnosis espresso extraction problems part 1Making a good Espresso (espresso espresso) is one of the most challenging activities for both coffee lovers at home and a veteran Barista in a cafe. A perfect espresso, like an excellent record, can be called a combination of art (the craftsmanship of the producer) and technology (the design of the coffee machine).
2015-03-17 One perfect Espresso really it's hard to come by.Before 2008, there was a heated discussion in the coffee industry about which Italian coffee beans should be used in the World Barista barista contest, so which is better to use SOE (single estate coffee,single origin) or Blend coffee? Baristas have changed to how to pick or match Italian coffee beans to get high marks, which is actually a sign of the maturity of the coffee industry, especially after 2008.
2015-09-02 World Rista coffee competition intention coffee beans 2008 beforeIn 2007, we discuss which is better to use SO (single estate coffee,single origin) or Blend coffee? People have changed to how to select or configure espresso to use beans to get high scores, which is actually a sign of the maturity of barista and roaster, especially after Copenhagen in 2008 and Atlanta, which just ended in 2009, espresso beans that you can refer to are also more popular.
2015-10-23 How to choose yours espresso contest with beans 2007There are always some problems when we use coffee machines to extract espresso, so let's see what the problems will be. And how to find the reason: one. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Watch the coffee flow out of the filter handle (CR)
2014-07-11 ESPRESSO ESPRESSO production ESPRESSO problemThere are always some problems when we use coffee machines to extract espresso, so let's see what the problems will be. And how to find the reason: one. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Watch the coffee flow out of the filter handle (CR)
2014-10-21 Coffee knowledge espresso EspressoThere are always some problems when we use coffee machines to extract espresso, so let's see what the problems will be. And how to find the reason: one. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Watch the coffee flow out of the filter handle (CR)
2015-09-16 Coffee machine extraction espresso emergence some problems responses methodsMany friends who use coffee utensils other than Italian machines always struggle with the fact that the coffee they make is free of oil. If we want to talk about this problem, let's look at it from two aspects. First, let's take a look at what's in a cup of black coffee besides water: caramelized sugars, flavored oils, quinic acid, and caffeine. If there is no flavor oil in the coffee, then stir-fry the coffee and stir-fry
2015-09-10 Still tangled coffee grease Italian Crema a lot use Italian machineCoffee, what is it? A drink, a carrier of taste, a way to feel the details of life.
2014-06-18 Coffee knowledge Italian Coffee Coffee Encyclopedia