What problems have you encountered since you started drinking coffee?

As friends get into coffee and discover its charm, have you ever thought about these questions?

01.What is the difference between Arabica and Robusta flavors?

When Arabica coffee beans are not roasted, they smell like a fresh grassy aroma. After being properly roasted, they show a "fruity aroma" (medium-light roast) and a "caramel sweet aroma" (dark roast).

Generally speaking, it has a better aroma and flavor than Robusta beans, making it the only coffee among these native species that can be drunk directly and alone, either as a single product or as an Italian blend.

Robusta coffee beans usually have a rather ordinary, dull and pungent flavor, and because the vast majority of the world's Robusta is grown in low-altitude areas, they lack personality.

When unroasted, they smell like raw peanuts. After roasting, cheap Robusta coffee beans usually have a flavor between "wheat tea flavor" (medium-light roasting) and "rubber tire flavor" (dark roasting), which makes it difficult to show delicate flavor.

02.What are the differences in coffee roasting degrees?

Coffee beans need to be roasted before they can be brewed. Some coffee purists prefer to buy green beans and roast them themselves, but most people buy a roaster.

While different coffee growers and roasters have their own opinions on what each level of roast should look like, in general, different roasts have the following characteristics:

Lightly roasted beans have low acidity, are slightly bitter, have a mild flavor, and are less full-bodied. They also contain the highest levels of caffeine.

Medium roasted beans are more flavorful, with notes of floral, berry, or earthy flavors, and this is the most common roast for American coffee.

Dark roasted beans have a strong bitter taste and acidity. It is worth noting that dark roasting does not necessarily mean strong coffee, but depends on how it is brewed.

03.What is soybean cultivation?

Freshly roasted coffee beans will emit carbon dioxide, causing the pressure in the package to be higher than one atmosphere. The pressure helps the aromatic substances and oils to blend, allowing all the aromatic substances inside the coffee beans to be easily extracted.

The one-way air valve commonly found on coffee bean bags is used to discharge excess carbon dioxide to prevent the bean bags from bursting due to carbon dioxide. A few days into the roasting cycle, the so-called degassing process begins, and carbon dioxide begins to escape from the coffee beans.

Bean curing method: Place the unopened coffee beans in a cool, dry, light-proof environment without irritating odors. After the bean curing period, stick the one-way valve (use transparent tape).

Italian blend beans: 7-14 days

Single origin coffee beans: 3-4 days

[Packing of Riyu Deyang coffee beans]

04. Does espresso have a higher caffeine content?

The rich flavor of espresso can easily lead people to mistakenly believe that it has a high caffeine content, but this is not necessarily the case.

Generally speaking, lightly roasted coffee beans and coffee that is extracted for a long time will have a higher caffeine content.

Therefore, when brewing coffee using the "drip method", the extraction time is longer, and the caffeine content is higher than that of Italian coffee extracted with high pressure and in a short time.

05.Does coffee have to be drunk while it’s hot?

As far as today's coffee is concerned, this is a wrong concept.

The quality of early coffee beans was not as high as it is now, so usually after they cooled down, some flaws in the flavor would become apparent, and then people would think that cold coffee is not tasty.

However, the quality of coffee is getting better and better, and the requirements are getting more and more stringent. What we should taste is the flavor of coffee when it is hot, warm, and cold.

Good coffee will still have a good flavor when it is cold. On the contrary, if a cup of coffee has a good flavor when it is hot, but becomes sharp and irritating when it is cold, this is a manifestation of flavor defects.

06. Is hand brewed coffee definitely better than machine brewed coffee?

This is a common misconception. Of course, we cannot deny that hand brewing can well show the essential flavor and characteristics of coffee.

However, if we need a cup of coffee with a rich and full flavor; or if we need coffee to be diverse and varied, we must choose machine-brewed espresso (Italian espresso) to get a cup of coffee with a strong flavor.

This is why every inch has its own strengths and weaknesses.

One important factor that espresso relies on is the professionalism of the barista, and the same is true for hand-brewed coffee; there is no difference between these two coffees brewed in different ways, only the difference in flavor.

07.What is fancy coffee?

Fancy coffee is also known as milk coffee, which is the cappuccino, latte, mocha that we usually see... It is made from espresso as the base, with milk foam made through steam, and other additives added to make the coffee.

Fancy coffee is made with blended beans to make the taste more balanced and rich. Cappuccino and latte are made in different ways and are not two different types of coffee, so don't attribute the names of fancy coffees to any other types of coffee in the future.

Let me tell you a little secret: fancy coffee is not as easy to make as you have seen in the videos. The reason it looks easy is because others have been working hard on it for a long time behind the scenes!

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