What's the difference between single espresso and double espresso? What coffee beans are used in espresso?

Espresso drinkers know that mocha, cappuccino, latte, etc. all use espresso with different milk ratios, some with a single espresso, some with a double espresso, what's the difference between one and two espresso grinds? What coffee beans should be used to make espresso? Next, this article, Front Street Coffee, comes to answer one by one for coffee fans.

What is espresso?

Espresso, also known as Espresso, is a beverage made by forcing a high-pressure stream of near-boiling water through finely ground coffee. Espresso is generally thicker than coffee made by other methods, and contains higher concentrations of suspended matter and dissolved solids, such as coffee fat (a creamy foam) on the surface. Because of its pressurized manufacturing process, Espresso has a strong taste and a very high concentration of chemicals. It is often used as a base for other beverages such as lattes, cappuccinos, macchiato, mocha, and American coffee. But there are also many coffee fans in the front street coffee shop who like to have a cup of espersso directly and feel its mellow and smooth flavor.

Single double espresso difference

In fact, the difference between single and double espresso coffee mainly lies in the concentration, such as the front street coffee shop single espresso is about 10 grams of coffee powder, double is about 20 grams of coffee powder, but the final coffee capacity is 30 ml. A single espresso uses a single powder bowl, a single mouth handle, a single espresso extraction, double espresso uses a bottomless powder bowl, no bottom handle or handle, a double espresso extraction.

But Front Street Coffee knows espresso coffee as tiny droplets of oil beneath the foam, dissolving sugar, acid protein and caffeine. There are bubbles and solid solutions suspended on the foam surface, so the wear of the grinder blade will slowly change with humidity and storage time, so adjust the grinding degree every day to ensure that the espresso flavor is stable.

However, because of the variety of coffee machines and bean grinders, the same grinding data may not be suitable for other models, so how to judge whether the concentrate is qualified?

How to judge whether a cup of espresso is qualified or not?

(1) Vision-foam Crema on coffee surface

Vision is the primary sense we use to understand the world, and coffee tasting is inevitably influenced by the appearance of coffee. What we really need to pay attention to at this stage is the Crema foam on the surface of the coffee, because this layer of foam provides important information about how good the coffee is brewed. The foam acts as a protective layer and varies in color from dark brown to light brown, even with reddish tints. The so-called tiger spots, or dark streaks on the foam, are caused by coffee powder particles in the coffee, indicating that this espresso is brewed perfectly. This is not only evidence of quality, but also of olfactory and gustatory perception. It is also critical for the retention of the coffee's directional flavor, allowing the aroma to remain until the coffee is finished.

(2) olfaction--odor of molecules entering nasal cavity from nasopharynx

After evaluating coffee visually, the next step is to explore the aroma of espresso coffee by using smell. Be sure to stir the coffee with a tablespoon to "break up" this foam, so that you have a clearer impression of the smell of coffee wafting. These odors may be weak or strong, elegant and clean, or plain and turbid. A good cup of Arabica coffee, for example, may have caramel, bread and honey aromas, with hints of citrus fruit and flowers. As for unpleasant odors, they may be sour, musty, woody or gunny.

(3) Taste-the taste of coffee substances in contact with the oral cavity

An ideal cup of Espresso, should be able to achieve a balance between the various elements, taste bright, after drinking the throat feel sweet and not bitter. More specifically, it should have moderate sourness, bitterness, sweetness, rich taste, solid and mellow consistency, lasting and refreshing sour rhyme like citrus.

The above is the content related to espresso coffee organized by Qianjie Coffee. What coffee beans are used to make espresso coffee? Front Street Coffee The following is an answer for coffee fans.

What coffee beans are used in espresso?

First of all, coffee fans should know that Italian coffee machine has a characteristic that it will amplify the flavor of a coffee bean. For example, Front Street Coffee uses Ye Jia Xue Fei from a single African producing area to make a cup of Italian espresso coffee, so its citrus citric acid will increase by multiples, it will be extremely sour to drink, and even there will be bad flavor presentation. Therefore, generally speaking, coffee beans used for Italian espresso coffee are blended beans. That is to say, 2-4 kinds of coffee beans from different producing areas are mixed and extracted according to a proportion, so that the Italian espresso flavor reaches a balanced taste and ensures the coffee flavor quality.

However, of course, it is not that single coffee is not suitable for espresso, but the parameters of grinding degree and so on have to be adjusted again, and it is necessary to adjust all the time to ensure the balance of daily flavor, which is more troublesome, but there are also many coffee shops that will provide this kind of coffee, and this type of coffee is called soe coffee;

However, front street coffee has not been put on soe coffee for the time being, because the risk is too great, the initial intention of front street coffee is to present each cup of coffee with the most perfect flavor to coffee fans friends, and soe coffee is easy to affect the flavor taste if you don't pay attention to parameters. Next, Qianjie Coffee will share the coffee beans used in espresso coffee. 1. Qianjie Coffee Sunflower Warm Sun Matching

Flavor: Distinct acidity, light berry aromas, wine bouquet, rich chocolate flavor, clear sweetness.

Recipe: Honduras Shirley: Yega Red Cherry =7:3

This blend front street is made of yejia sherry sun red cherries and honduran sherry. Front Street's design concept for this blend is Italian and hand punch can be used. It is used to make espresso when the flavor emitted by the obvious fermentation of wine, citrus and berry taste on the mouth of the acid immediately emerged, with whiskey aroma, aftertaste is dark chocolate.

According to Qianjie Coffee, when brewing this warm sun blend coffee beans by hand, the flavor is not as rich as when making espresso coffee. After brewing, there is fermented wine fragrance and a little citrus aroma. When the temperature is high, there is only obvious wine fragrance and dark chocolate aftertaste. After the temperature drops, it will slightly reflect the acidity of citrus and berry. The whole is clean and fresh, without vanilla cream taste. 2. Qianjie Coffee Boutique Pinpei

Flavor: Soft and slightly sour, sweet, nutty and sweet, overall feeling is not too stimulating, mild, oil belongs to medium.

Formula: Colombia: Brazil =3:7

This blend of Brazil and Colombia has a light aroma of baked grass, a slightly bitter fragrance, a smooth, sweet finish and a pleasant finish. This is because coffee beans from Colombia Cymbidium have a pleasant sour taste, a mellow smell, moderate acidity, and a rich sweetness that is very resistant.

The coffee beans from Brazil's Xilado region have a pleasant sweet and bitter taste and a smooth entrance. So it's a perfect match. 3. Qianjie Coffee Business Pinpei

Flavor: caramel sweetness, nutty and cocoa, dark chocolate flavors, sour and sweet balance, slightly bitter, lingering finish.

Recipe: Colombia: Brazil: Robusta =3:6:1

This blend features Brazilian, Colombia and 10% Robusta coffee beans. Classic taste, front street thinks this blend tastes rich fat and taste and caramel sweetness, but also with nuts and cocoa, dark chocolate flavor, sour and sour balance, slightly sweet and bitter, lasting finish. This commercial blend uses the same Colombia and Brazilian coffee beans as the Front Street Coffee Boutique blend, but with the addition of Robusta to provide a rich fat, making the coffee taste more mellow. 4. Qianjie Coffee Basic Blending

Flavor: With soft fruit acids, caramel sweetness, nutty, dark chocolate flavor, smooth and viscous, but taste light.

Formula: Yunnan: Brazil =3:7

This blend of Brazil and Yunnan is thought to taste soft fruit acid and caramel sweetness, as well as nutty, dark chocolate flavors, smooth and sticky, but light in taste. This is because Yunnan's natural conditions are very similar to those of Colombia, with high altitude, large temperature difference between day and night, mellow flavor, moderate sour taste, rich flavor, uniform particles, rich oil and fruity fruit. Its quality and taste are similar to those of Colombia coffee. But it's still slightly lighter than Colombia, while Brazil's Cilado coffee beans have a pleasant sweet and bitter taste and a smooth taste. Therefore, the flavor of these two kinds of coffee beans is also good, and this basic blend coffee bean is very cost-effective, suitable for Italian beginners and small coffee shops.

The above makes the four coffee beans specially prepared by the front street coffee roaster of Amway, which can make Italian espresso coffee. Interested coffee fans may also wish to taste them. Secondly, coffee fans may be curious that coffee beans can be mixed together to make Italian coffee. Can Italian blended coffee beans be used to make hand-brewed coffee to drink? Front Street Coffee answers this question for coffee fans below.

Can Italian coffee beans be brewed by hand?

Single item coffee beans can be made by Italian coffee machine. Similarly, Italian coffee beans can also be brewed in the form of hand brewed coffee. However, the brewed flavor is always slightly different from that brewed by Italian coffee machine. Similarly, the ground hand brewed parameters also need to be adjusted, and the flavor may be more "special". It mainly depends on personal preferences. If interested coffee fans and friends of Qianjie Coffee can also try it. Front Street Coffee will provide coffee fans with hand-brewed data reference for Italian coffee beans below.

Front Street Italian coffee parameters: V60 filter cup, powder 15g, water temperature 90℃, powder water ratio 1:15, grinding degree (No.20 standard sieve pass rate 80%, coarser than Italian coffee)

Front street coffee brewing technique: staged extraction. Steaming with 30g water for 30 seconds, injecting water in a circle with small water flow until 125g, and stopping injecting water until 225g when the water level is about to expose the powder bed. Remove the filter cup when the water level is about to expose the powder bed.(Steaming starts) Extraction time is 200 ".

The above is the relevant content of espresso coffee organized and shared by Qianjie Coffee House. I hope it can help coffee fans who want to know the relevant knowledge so that they can choose their favorite espresso bean flavor in the future.

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