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Why does the coffee taste a little sour? Acid from the baking process

Why does the coffee taste a little sour? Acid from the baking process

The sour ingredients in raw coffee beans are citric acid, malic acid and quinic acid. Phosphoric acid, etc., but this is not the sour taste we feel when we drink coffee. The sour taste we taste mainly comes from the acid produced in the baking process. When roasting coffee beans, some of the ingredients in the beans will react to form new acids. A representative example is the epigenetic decomposition of chlorogenic acid.

2015-10-10
Description of coffee bean flavor by Colombian bourbon red wine treatment introduction of taste varieties of grinding scale

Description of coffee bean flavor by Colombian bourbon red wine treatment introduction of taste varieties of grinding scale

Colombian red wine-treated coffee beans are washed and dried after removing the peel and pulp, and the degree of fermentation is very low. Honey treatment is to remove the peel, with part of the pulp for drying, the drying process will produce a certain degree of fermentation. The sun is dried with peel and pulp, and the degree of fermentation is slightly higher in the drying process. And the red wine treatment is to put the fermentation link alone.

2016-10-19
Description of Flavor of Coffee beans treated with Red Wine

Description of Flavor of Coffee beans treated with Red Wine

In addition, some containers are similar to red wine fermentation plugs or one-way exhaust valve devices through which carbon dioxide can be discharged to control the air concentration in the container. At this point, the coffee fruit in the container is fermented with acetic acid, the bean flavor is relatively bright and clean, with citric acid flavor Sasa described in the competition: choose Ray of Columbia Cloud Manor (Las Nubes)

2016-10-24
What are the varieties of coffee beans?

What are the varieties of coffee beans?

Water washing-increase fruit acid spirit: water washing is the most popular treatment method at present, and water washing is used in almost all Central and South America except Brazil. The color of the washed beans is blue and green, the appearance of the beans is neat and the pulse is good, and the coffee quality is the highest. Generally speaking, the sour flavor and bright feeling of washed beans are better, and the flavor is clean and free of miscellaneous flavor, which is the most commonly used method for the treatment of fine coffee.

2016-05-27
What are the different ways of handling different kinds of coffee?

What are the different ways of handling different kinds of coffee?

. Water washing-increase fruit acid spirit: water washing is the most popular treatment method at present, and water washing is used in almost all Central and South America except Brazil. The color of the washed beans is blue and green, the appearance of the beans is neat and the pulse is good, and the coffee quality is the highest. Generally speaking, the sour flavor and bright feeling of washed beans are better, and the flavor is clean and free of miscellaneous flavor, which is the most commonly used method for the treatment of fine coffee.

2016-05-24
The handling of coffee beans A coffee shop open all night in Changchun

The handling of coffee beans A coffee shop open all night in Changchun

Water washing-increase fruit acid spirit: water washing is the most popular treatment method at present, and water washing is used in almost all Central and South America except Brazil. The color of the washed beans is blue and green, the appearance of the beans is neat and the pulse is good, and the coffee quality is the highest. Generally speaking, the sour flavor and bright feeling of washed beans are better, and the flavor is clean and free of miscellaneous flavor, which is the most commonly used method for the treatment of fine coffee.

2016-06-04
The treatment method of raw bean-- how to deal with raw bean by washing method

The treatment method of raw bean-- how to deal with raw bean by washing method

Water washing-increase fruit acid spirit: water washing is the most popular treatment method at present, and water washing is used in almost all Central and South America except Brazil. The color of the washed beans is blue and green, the appearance of the beans is neat and the pulse is good, and the coffee quality is the highest. Generally speaking, the sour flavor and bright feeling of washed beans are better, and the flavor is clean and free of miscellaneous flavor, which is the most commonly used method for the treatment of fine coffee.

2016-03-22
Coffee flavor tasting: where does the

Coffee flavor tasting: where does the "bitter" and "sour" in coffee come from?

Bitterness: caffeine is the best known bitter ingredient in coffee, but caffeine actually accounts for up to 10% of the bitter taste. This can be understood from the fact that the concentration of caffeine in roasted beans is not affected by the degree of roasting, and that non-caffeine also tastes bitter. So where does the remaining 90% of the bitterness come from? One of the sources of coffee bitterness is brown pigment. Brown pigment

2015-12-14
Dried coffee beans

Dried coffee beans

Sun-cured coffee beans are more acidic than water-washed beans, especially aminobutyric acid, but water-washed coffee is often sour in the sun. This is because coffee beans are dehydrated for a long time in the process of sun drying, and enzymes decompose glutamic acid into aminobutyric acid. Although the content of aminobutyric acid in washed beans is lower than that in sun-dried beans, but citric acid, acetic acid and other acid mouth

2014-06-06
Coffee beans.

Coffee beans.

Coffee should be red, ripe and picked. Beans are sweeter.

2014-06-05
Introduction to the treatment of raw beans-- what is the washing method? How to deal with raw coffee beans

Introduction to the treatment of raw beans-- what is the washing method? How to deal with raw coffee beans

Water washing-increase fruit acid spirit: water washing is the most popular treatment method at present, and water washing is used in almost all Central and South America except Brazil. The color of the washed beans is blue and green, the appearance of the beans is neat and the pulse is good, and the coffee quality is the highest. Generally speaking, the sour flavor and bright feeling of washed beans are better, and the flavor is clean and free of miscellaneous flavor, which is the most commonly used method for the treatment of fine coffee.

2016-03-30
What's the difference between washed coffee and sunny coffee?

What's the difference between washed coffee and sunny coffee?

1. Solarization-thanks to one shot: the oldest bean-producing countries, Ethiopia and Yemen, almost all use the sun to get the beans, take out the red fruits and half-green and half-red fast-ripening fruits that have sunk to the bottom of the trough and spread them in a bean drying farm for natural drying. The time depends on the weather. It takes about two to four weeks to reduce the water content of the coffee beans in the fruit to 12% and harden, and then use a sheller to remove the stiff flesh and sheep.

2016-06-04
Q-Grader examination experience and examination form Coffee examination Notes

Q-Grader examination experience and examination form Coffee examination Notes

There are 8 major items and 20 subjects in the Q-Grader examination. The first major item (4 subjects) was tested together in 2 subjects, with a time limit of 1 hour; the second major item (1 subject) was graded for 1 hour; the third major item (2 subjects) was graded for cooked beans; the fourth major item (1 subject) was limited to 1 hour for organic acid; the fifth item (3 subjects) was limited for 1 hour; and the sixth major item (3 subjects) was limited for 1 hour.

2015-09-07
Introduction to the treatment of coffee beans there are several treatment methods for mechanically semi-washed coffee beans

Introduction to the treatment of coffee beans there are several treatment methods for mechanically semi-washed coffee beans

Mechanical semi-washing-economical half-sun method can not be used in all producing areas. If the producing area with heavy moisture is allowed to take out the pectin pods and expose them outdoors, it is not only not easy to be dehydrated and hard, but also prone to parasitic molds. therefore, the mechanical semi-washing method has been developed in areas with heavy humidity, which saves both effort and water. First put the red fruit and the half-green and half-red fruit that have sunk into the sink

2016-07-21
Coffee bean extraction method

Coffee bean extraction method

Coffee should turn red and ripe before picking. Beans are sweeter. If coffee farmers in order to save trouble, regardless of whether the coffee fruit ripe green red together will make coffee drink to death sour mouth, so fine coffee must pick mature red fruit.

2014-05-14
What are the characteristics of coffee? what are the ways of handling coffee?

What are the characteristics of coffee? what are the ways of handling coffee?

Washing is the most technical way to pick up beans, and the quality of coffee is ensured through multiple sieving procedures. First move the red fruit and half-green and half-red fruit that have sunk into the sink into a large or medium-sized pulp screening machine (PulpingMachines). It is so cleverly designed that the mechanical force presses the fruit against one side of the sieve hole, which is exactly the size of the pod (coffee wrapped in sheep dander).

2016-05-24
How to deal with coffee beans? how to handle coffee? how to deal with high-quality coffee?

How to deal with coffee beans? how to handle coffee? how to deal with high-quality coffee?

After taking out the sticky pods of the red fruit, move them into a large sink, followed by the most important washing and fermentation to remove pectin shavings from the pods. This sticky material is not easy to wash away with water, so it is necessary to hydrolyze the pectin with all kinds of bacteria in the tank, decompose the pectin and wash the pods in the tank to accelerate the pectin to break away from the pods. The fermentation process takes about 16 to 36 hours.

2016-07-28
Coffee cherries are made from beans.

Coffee cherries are made from beans.

If coffee farmers in order to save trouble, regardless of whether the coffee fruit ripe green red together will make coffee drink to death sour mouth, so fine coffee must pick mature red fruit. Distinguish between floating beans and sinking beans: coffee berries picked from coffee fields must not be mistaken and must be sent to the treatment plant on the same day. immature Ripe fruit retains ripe red fruit. simplest

2014-09-02
Boutique coffee roasting knowledge of acid in roasted coffee

Boutique coffee roasting knowledge of acid in roasted coffee

Formic acid is the most in shallow baking, and acetic acid is the most in shallow baking with the deepening of deep baking. with the deepening of deep baking, pyruvate and baking degree-independent lactic acid and baking degree-independent malic acid are the most in shallow baking, and citric acid is the most in shallow baking with the deepening of deep baking.

2014-10-15
Basic knowledge of sour coffee in roasted coffee

Basic knowledge of sour coffee in roasted coffee

There are mainly the following kinds of acids in roasted coffee: formic acid is the most in shallow roasting, and acetic acid decreases gradually with the deepening of deep roasting. With the deepening of deep baking, pyruvate and baking degree independent lactic acid and baking degree independent malic acid are the most, while citric acid decreases with the deepening of deep roasting.

2015-01-28
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