Four steps to perfect a cup of Italian coffee

The standard amount for a perfect Single Espresso is one ounce of coffee essence extracted in 25 seconds. Crema: A perfect Italian coffee espresso, always thick on the surface, brown crema, crema is the protein, oil and other aromatic ingredients extracted from coffee under high pressure, is the essence of coffee concentrate. finished

The process of turning fresh coffee fruit into raw coffee beans

The variety of coffee treated with raw beans certainly determines the natural flavor, but the treatment of raw beans determines the acquired quality. Selected coffee attaches great importance to flavor and quality, so it pays special attention to the technology and details of processing. Harvest: the harvest method is one of the criteria for judging selected coffee. if calculated from the time of germination, Arabica coffee will take about 5 years to blossom and bear fruit. Brazil

Basic chemical reactions of coffee beans during coffee roasting

Many thermal and chemical reactions take place during baking: decarbonation, dehydration of quinic acid, subdivision, isomerization, polymerization, and complex sugar reactions (caramelization). The main components of the thermal reaction are monosaccharides and sucrose, chlorogenic acid, free amino acids, and fenugreek amide. Both aravinose and calactose in the polysaccharides are transferred, and the basic vulcanization process includes hydroxylamine.

When should I stop baking? It can be judged from the following points

1. Coffee beans color: Because coffee beans in different degrees of roasting will show different colors, so the color will become the most commonly used roasting depth basis, this method can be applied to most coffee beans, but there are some coffee beans more special, such as Kenya beans color will be much darker than the general coffee beans, this time we must pay special attention. 2. Baking time: See details

Two common extraction methods of coffee: Italian style and soaking

When it comes to brewing coffee, there are many kinds of coffee-making equipment and different methods on the market. But in terms of the principle of coffee extraction, it's all the same. The core process of the extraction principle is: (1) grind coffee beans to increase the surface area of coffee in contact with water; (2) fully soak coffee powder in aqueous solution and hydrophilically dissolve coffee essence; (3) separate coffee solution and coffee grounds.

Coffee jacquard technology how to make a good milk foam?

If you want to make a good milk foam, you should first figure out how the milk foam is formed. Very often, we will find that after a cup of Cabo is served, the milk foam on the surface will break one by one, and finally become half a cup of coffee. This is because milk is low in milk fat or unstable. There are so many kinds of milk in the market that people are dazzling. What on earth is it?

Coffee common sense Some common words in coffee extraction Concept

Yellowing: Describes the process by which the effluent changes from a dark brown color with tiger stripes to a uniform pale yellow color. This usually occurs in the last 1/3 of the paragraph, indicating that the extraction operation can be completed. The over-yellowing part of the espresso has a weak taste and little aroma. If it lasts too long, it will dilute the alcohol and no longer be a pleasant taste sensation. channel effect

Why is whole milk easier to foam?

Milk fat exists in a small crystal ball coated with a thin film of protein and fat, and the film of each crystal ball can prevent the crystal balls from colliding with each other and form a larger fat bubble. In addition, the film protects the crystal ball from being digested by enzymes, making the milk less sweet or not sweet at all. During the heating process, the weight of the protein in the milk increases, making the milk thicker.

Italian Condensed knowledge espresso concept in European and American Coffee Industry

Start with the result that 30cc/ 30sec gets a perfect Espresso. These two values of course depend on beans, and the differences in baking method, baking degree and formula ratio will naturally lead to changes in the reference point. The amount of extraction is inversely proportional to the extraction time: the more the amount of extraction is, the shorter the contact time between coffee powder and hot water must be (avoid excessive extraction). On the contrary, when extraction

Understand the true meaning of espresso through crema

Just recently, a coffee magazine in Copenhagen published an article saying that coffee would taste better if the coffee fat from Italian espresso was skimmed off. Indeed, the coffee oil tastes extremely bitter, and if the oil is removed, the overall taste of the coffee will become sweeter. But traditional coffee makers don't think so. The Italian National espresso Association

Taste map in the tongue of coffee tasting guide

A specific area of the tongue specializes in a sense of taste, the tip of the tongue is the most sensitive to sweetness, the root of the tongue is the most sensitive to bitterness, and both sides of the tongue are responsible for tasting sour and salty taste. This is what people often call a taste map. The plausible truth of taste map: the theory of taste map has been around for decades. In fact, the cells that distinguish all kinds of taste exist in every taste bud, and the taste buds exist in

Six prerequisites for making perfect coffee to buy high-quality coffee beans

We already know the golden ratio of coffee with perfect taste. So, what is the premise of making perfect coffee? 1. Buy high-quality coffee beans-it is best to choose whole beans rather than ground coffee powder;-although high-quality coffee can be preserved for a year after roasting, most coffee beans reach the strongest aroma in a few days after roasting, and then the aroma of coffee slowly fades, so the most

Common problems and solutions in making espresso

If you work in a coffee shop, you should always be on guard against emergencies. The slightest thing can make your day very bad. This may be the general rule of the catering industry. As a barista, this little thing is likely to be a cup of coffee that failed to make, or a question asked by a customer that you can't answer. Today, let's share together

General knowledge on the concept of Powder-Water ratio of individual Coffee

The horizontal axis is the extraction rate, the vertical axis is the concentration, assuming that the coffee powder is 20g, then the coffee liquid obtained when the concentration is 1.35% within the gold cup and the extraction rate is 18%. The coffee liquid obtained when the extraction rate is 1.35%, 1.35%, 266g, 1.35%, 1.35%, and the extraction rate is increased to 22%. The coffee liquid is 20, 22%, 1.35%, and 325g. The extraction rate will remain 22%. The constant concentration will be 1.15%. The liquid of coffee is 20% 22% Coffee 1.1.

SCAA gold cup theory the ratio of coffee powder to water

The proportion of SCAA refined cup coffee defined by the Gold Cup Fine Coffee Association of the United States and the European Fine Coffee Association of scae, the extraction rate of coffee must be about 20%, while the TDS (concentration ratio) is about 1.1% to 1.3%. For Drip Filter dripping and brewing, how to extract the best coffee flavor, the controlling factors are nothing more than the changes of the extract of coffee powder and the concentration in a cup of coffee.

How long is the shelf life of ripe coffee beans?

Wine lovers all know that a bottle of wine encapsulated in a bottle is a living creature that is changing all the time. In fact, the same view applies to packaged and stored coffee beans. So how long can the unopened coffee beans be preserved in proper packaging? We use the practical experience of a large number of lovers and coffee shopkeepers to freshen the cooked beans of coffee.

Reveal the 100 points of hand coffee brewing skills what do you need to pay attention to?

The sharing from David Wang Wang Jianqiang, the certified sensory judge of the WBC World Barista Competition in China, likes to play with the speed of hand to watch. First, wet the filter paper with hot water, warm the filter cup and the centimeter pot at the same time. Wetting filter paper is a key link, rough cotton paper has the taste of paper, wetting can avoid affecting the taste of coffee in the brewing process. Simultaneous heating

Do you know the common sense of coffee machine maintenance? Coffee machine cleaning

Know how to drink coffee and savor life. But no matter how good your coffee machine is, if you don't know how to maintain it, it will shorten your life: 1. The coffee machine should be placed in a dry, ventilated room. 2. Don't move it frequently. Avoid external force impact 3, keep the exterior clean 4, do not cut off the power supply for a long time. 5. Read more instructions and tips on coffee machine maintenance when you are free.

Diagram the caffeine content in various drinks

The "three values" and "four flavors" of tasting coffee

Three noses can distinguish thousands of different smells, tasting coffee first smell the aroma of coffee. Suck the coffee so that it covers all taste areas and allows the subtle flavor and flavor of the coffee to reach the nose. The taste stimulation produced by tasting coffee at the tip of the tongue or on both sides of the tongue will show different thickness on the tongue. The aroma of four-flavor coffee includes floral aroma and smoky flavor. Describe