Choose and buy good coffee beans

How to judge the quality of beans from their appearance? Can be from its color---whether the luster is good, the color is uniform and colorless; smell its fragrance---whether it is fragrant; test the crispness--put it into the mouth and bite, whether it is crisp and sound, taste good, and finally see if the bean shape is full and heavy. Because there is no good coffee beans/powder is not able to make a mellow coffee. Secondly, pay attention to whether the packaging of coffee beans is intact, if the packaging bag has air penetration, then coffee beans are easily exposed to air and make beans absorb moisture, affecting the quality of coffee beans.

Appearance judgment

Delicious coffee, coffee beans from its shape can be known after roasting, of course, can not have bad coffee beans mixed, but also note that normal beans will be mixed with high-quality coffee beans and cause obstruction, a Diao brewing delicious coffee roasted beans, first of all, must be beans big fat, and uniform, followed by the size of consistent Dan no stain. These are the main points of visual discrimination, if you look carefully, should not be difficult to distinguish.

Fermented beans: coffee beans that fall into the soil before harvest. The sour smell will have a great impact on the taste of coffee.

Dead beans: also known as immature beans, or affected by climate and other factors, development is not sound, fried after baking will produce fried spots, so that coffee has a green taste.

Black beans: Fermented beans, rotten, blackened coffee beans. Because it is black, it can be distinguished from normal coffee beans at a glance.

Worm beans: coffee beans infected by insects

Incomplete beans: may be stuck during operation, or handling carelessly, resulting in incomplete coffee beans. Will cause fried baked when there are fried spots, and will produce bitter and astringent taste.

Others: beans with thin skin, beans with bad hair, beans that do not produce complete sourness after drying, shell beans with only shell, etc.

Judgement during grinding

Fully roasted coffee can extract moisture, can brew a delicious coffee, this coffee beans can be judged when grinding. Good quality coffee beans in the grinding will be gently issued salad salad sound, gently shake the hand, the original flavor of coffee that overflow. Bad coffee beans will have a squeaky sound. There's a kind of a seizure feeling when grinding.

Judgment at the time of death

The easiest way to brew delicious coffee is to sift through a filter paper. And in brewing, there is also a way to judge whether coffee is delicious, that is, in hot water, whether the powder has not expanded, fully roasted coffee after extracting moisture in brewing, there will be beautiful and detailed foam expansion.

Judgment after death

Coffee may vary in concentration depending on the degree of roasting and the method of extraction, but the characteristic of delicious coffee is that the coffee solution extracted from the brewing under the same conditions is clear. The spoon can be clearly seen through the fluid in the image below, while it is almost invisible in the stone image. A cup alone is hard to tell, but if you compare it, it's clear whether the coffee tastes good or not. A cup of delicious coffee, even after 30 minutes, is still clear in color, and the taste does not change.

Judging from the taste and aroma of coffee

Delicious coffee acidity citrus fruit-like refreshing, without strong acidity. Bitterness is mild bitterness. There is no bitter taste like smoke or scorch.

Judging from the quality of the raw beans

The shape, grinding stage, withdrawal, post-withdrawal, taste, aroma stages have been discussed as key points in judging whether coffee tastes good or not, but this is all for fully roasted coffee beans. Green beans before roasting, generally known as (Green), if the quality of raw beans is poor, no matter how much effort fried roast can not brew a beautiful coffee. Green beans are usually exported two months after harvest, and this year's crop is called New Crop. A year later it is called Past Crop. Coffee beans are crops, and freshness naturally affects their taste. Fresh raw beans, you can enjoy the distinct characteristics of its various varieties and have a vibrant flavor. Take rice for example, if it is left for a long time, its original flavor will fade with the loss of water. Fresh raw beans, showing bright green ground distinguished. Except for freshness. No matter what kind of variety, should also try to choose larger particles and no stain of raw beans.