Introduction of coffee knowledge products and roasting degree

1. Coffee roasting

Coffee taste varies according to bean type, grinding method, degree of roasting, and quality. The type of beans is essential, but the method of grinding and the degree of roasting are subjective artifacts. Basically, coffee is made through a process of harvest selection, roasting, grinding and extraction, but the roasting technique is the most important key to the taste of coffee.

Roasting is simply to fry raw coffee beans, by heating, so that he changes, in the process of roasting beans, the coffee beans will be heated throughout, so that the beans are completely bounced is absolutely correct, until the heat completely penetrates into the raw beans, coffee beans fully expanded so that coffee beans will emit a unique aroma.

Coffee is roasted. Some of it evaporates, but the aromatic oil dissolves easily in water and tastes good to the drinker. However, the roasting time should not be too long, and all the coffee beans should be fried inside. As far as the roasting process is concerned, there are 3 kinds of light, medium and strong roasts. Light roasted coffee has a thin color and a lot of acidity. Medium roasted coffee has just the right acidity and bitterness. At present, a more popular way to quickly roast charcoal fire, can make coffee flavor completely retained without flash.

2. Coffee comminution and mixing

Roasted coffee beans will smell good after grinding, so it is best to use them as soon as possible after grinding, and it is best to grind them every time you drink them.

Ground coffee is divided into powder, fine particles, medium particles, etc. Finely ground coffee is stronger than ground coffee, which has an elegant, aromatic flavor. Coarse ground coffee and fine ground coffee are blended together for easy storage. When such coffee is prepared into a beverage, fine coffee can be concentrated, and coarse coffee can emit aromatic flavor, so neutralization is ideal.

Coffee blending refers to the technique of mixing different types of coffee beans. After harvest, coffee beans undergo a variety of changes during storage, as they add certain characteristics. You lose some of your character. So mix different kinds of coffee. The goal is to complement each other and to create new features. Mixed coffee should be mixed at least three kinds, need to be done by experts with sensitive taste and smell.

Coffee brewing

There are many kinds of coffee brewing results, and coffee varieties, grades, growth and origin, aroma, acid, sweet and bitter, alcohol and other basic characteristics, as well as roasting methods, heat, grinding powder thickness, plus coffee freshness and storage methods are related, in addition to coffee itself, its water quality, water temperature, heat, cups or containers, will also image coffee brewing quality.

(1) Water quality.

Coffee, like tea, tastes better. Water quality must be stressed. Pay attention to the quality of water does not mean to use mountain spring water, natural water. Distilled water is ideal. At present, tap water has a strong disinfectant smell and calcareous quality. The coffee that comes out is not fragrant, can take the method of precipitation to remove calcareous. In addition, the water used to make coffee should not be alkaline hard water or water containing a lot of iron.

(2) Coarse beans and fine beans have different water temperatures.

No matter what kind of coffee is brewed, the thickness of coffee beans is closely related to the water temperature. Grind coarse coffee beans, water temperature should be high, brewing time should be long, coffee powder fine, water temperature should be low, time is short, there are the following suggestions for reference, to 0.1 cm size coffee beans (about and coarse sugar particles almost), water temperature to 85℃~95℃ for the best time for 20 seconds ~60 seconds, in the cooking process every 15 seconds ~20 seconds stir 2 ~3 times.

Enjoy coffee.

1. Cup

It is easier to brew good coffee with glassware, ceramic insulation effect can maintain the original flavor, and now enamel coffee containers are more common in western society. Coffee does not use metal utensils, because coffee on contact with metal utensils, will have an oxidation effect, so that it produces an unpleasant taste.

2. Coffee consumption

The amount of coffee used must be determined according to the particle size of the brewed coffee. Generally speaking, 500 grams of coffee is espresso if brewed 40 to 50 cups or less, and if brewed 50 to 60 cups, it is coffee with moderate concentration. Powdered coffee can be used less than medium-sized coffee, but coarse-grained coffee must be used about 15% more than medium-sized coffee. In addition, if you make coffee with a slower filter belt, you should put 5% to 15% more than a high-end coffee pot or filter paper coffee pot.