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Tell me why the coffee turns sour after it is cooled.

Tell me why the coffee turns sour after it is cooled.

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it?

2014-07-10
Household baking machine

Household baking machine

As long as you have this "HOTOP home roaster", you don't have to spend a lot of money on a selection of coffee baked outside, and you can enjoy baking your own coffee beans at home. Whether you drink your own coffee at home, employees in the office, customers drink coffee or open a shop to sell coffee, you no longer need to buy ready-made coffee beans. A digital deluxe coffee roaster gave it to me.

2016-05-24
Knowledge of coffee bean roasting process and stage characteristics of coffee roasting

Knowledge of coffee bean roasting process and stage characteristics of coffee roasting

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. The baking process can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans boil

2015-03-25
The process and stage characteristics of coffee roasting how to bake coffee beans

The process and stage characteristics of coffee roasting how to bake coffee beans

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. Baking can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans

2016-04-28
Boutique coffee studies why coffee turns sour after it is cooled.

Boutique coffee studies why coffee turns sour after it is cooled.

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2014-10-15
The process and stage characteristics of coffee roasting knowledge of coffee bean roasting

The process and stage characteristics of coffee roasting knowledge of coffee bean roasting

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. The baking process can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans boil

2015-01-28
General knowledge of boutique coffee roasting detailed explanation of coffee bean roasting process

General knowledge of boutique coffee roasting detailed explanation of coffee bean roasting process

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. The baking process can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans

2014-12-10
Common sense of average Chemical composition of Coffee beans

Common sense of average Chemical composition of Coffee beans

The average chemical composition of raw coffee beans is as follows: water 12%, nitrogen 12%, fat 12%, sugar and dextrin (dextrine) 10%, other non-nitrogen substances 18%, dust 4%, tannin 6.7%, caffeine 1.2%, coffee essential oil 0.1%. Of course, these data are not fixed, and the quantity of some of these ingredients varies greatly, which is why each kind of coffee is so different.

2015-06-06
Vietnamese frozen coffee

Vietnamese frozen coffee

Vietnamese-style frozen coffee, tricolor ice, clear and cool, salty and sour plum ice, enjoy Vietnamese-style frozen coffee in summer, tricolor ice, clear and cool, salty and sour plum ice, most suitable for summer, tricolor ice tastes strange because of the addition of Vietnamese curry, refreshing, refreshing and moisturizing the heart and lungs, salty and sour plum ice to quench thirst and smooth throat. Vietnamese coconut green is thinner than ordinary coconut green, but the coconut milk is very cool. China Coffee Trading Network: www.gaf

2014-05-27
16 super cool coffee cups are designed to make a perfect cup control.

16 super cool coffee cups are designed to make a perfect cup control.

Do you often need coffee to cheer you up in the sleepy afternoon? It can be seen how important coffee is to urban white-collar workers. A good horse with a saddle, a coffee with a cup, and a cup of coffee in an interesting coffee cup will make you feel more happy. Let's take a look at these 16 cool, personalized coffee cups. Do you like every one of them?

2014-09-23
Vietnamese frozen coffee is the best fancy coffee to enjoy in summer.

Vietnamese frozen coffee is the best fancy coffee to enjoy in summer.

Vietnamese-style frozen coffee, tricolor ice, clear and cool, salty and sour plum ice, enjoy Vietnamese-style frozen coffee in summer, tricolor ice, clear and cool, salty and sour plum ice, most suitable for summer, tricolor ice tastes strange because of the addition of Vietnamese curry, refreshing, refreshing and moisturizing the heart and lungs, salty and sour plum ice to quench thirst and smooth throat. Vietnamese coconut green is thinner than ordinary coconut green, but the coconut milk is very cool.

2015-01-15
Vietnamese frozen coffee is the best iced coffee enjoyed in summer.

Vietnamese frozen coffee is the best iced coffee enjoyed in summer.

Vietnamese-style frozen coffee, tricolor ice, clear and cool, salty and sour plum ice, enjoy Vietnamese-style frozen coffee in summer, tricolor ice, clear and cool, salty and sour plum ice, most suitable for summer, tricolor ice tastes strange because of the addition of Vietnamese curry, refreshing, refreshing and moisturizing the heart and lungs, salty and sour plum ice to quench thirst and smooth throat. Vietnamese coconut green is thinner than ordinary coconut green, but the coconut milk is very cool.

2015-06-17
Italian iced coffee and Vietnamese frozen coffee that are most suitable for summer

Italian iced coffee and Vietnamese frozen coffee that are most suitable for summer

Vietnamese-style frozen coffee, tricolor ice, clear and cool, salty and sour plum ice, enjoy Vietnamese-style frozen coffee in summer, tricolor ice, clear and cool, salty and sour plum ice, most suitable for summer, tricolor ice tastes strange because of the addition of Vietnamese curry, refreshing, refreshing and moisturizing the heart and lungs, salty and sour plum ice to quench thirst and smooth throat. Vietnamese coconut green is thinner than ordinary coconut green, but the coconut milk is very cool.

2015-07-27
The etiquette of drinking coffee should not cool the coffee with your mouth.

The etiquette of drinking coffee should not cool the coffee with your mouth.

It has been said that a good cafe should make people feel at home or relaxed. Will not be restrained by any etiquette, everything is natural ~ at will, speak freely. Although this sentence sounds reasonable, we should also understand the basic coffee etiquette. 1. Keep your fingers from the ear of the cup: coffee you drink after a meal usually use sleeves.

2015-03-05
The process of roasting coffee, the process of roasting coffee, the detailed explanation of coffee roasting process.

The process of roasting coffee, the process of roasting coffee, the detailed explanation of coffee roasting process.

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. The baking process can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans

2016-03-14
The average chemical composition of raw coffee beans is as follows

The average chemical composition of raw coffee beans is as follows

The average chemical composition of raw coffee beans is as follows: water 12%, nitrogen 12%, fat 12%, sugar and dextrin (dextrine) 10%, other non-nitrogen substances 18%, dust 4%, tannin 6.7%, caffeine 1.2%, coffee essential oil 0.1%. Of course, these data are not fixed, and the quantity of some of these ingredients varies greatly, which is why each kind of coffee is so different.

2015-09-21
General knowledge of roasting of high-quality coffee beans process and stage characteristics of coffee baking

General knowledge of roasting of high-quality coffee beans process and stage characteristics of coffee baking

Most people think that baking is nothing, just frying the raw beans with fire. In fact, in the process of coffee processing, roasting is the most difficult step, it is a kind of science, but also an art, so in Europe and the United States, experienced roasters enjoy a highly respected status. The baking process can be divided into the following three stages: 1. Drying in the early stage of baking, raw beans boil

2014-12-17
Keep the coffee in a cool and dry place

Keep the coffee in a cool and dry place

The storage of coffee beans directly affects the quality of coffee beans, especially for coffee beginners, how to preserve your beloved beans, here are several ways to recommend the preservation of coffee beans. ◎ makes good use of the specific gravity of carbon dioxide as far as gas is concerned, the specific gravity of carbon dioxide is higher than that of gas. Therefore, in the same sealed space, carbon dioxide precipitates at the bottom and air floats at the top. Understood

2015-06-08
Several ways to preserve coffee beans in a cool and dry place

Several ways to preserve coffee beans in a cool and dry place

The storage of coffee beans has a direct impact on the quality of coffee beans, especially for coffee beginners, how to preserve your beloved beans? here are some ways to preserve coffee beans. ◎ makes good use of the specific gravity of carbon dioxide as far as gas is concerned, the specific gravity of carbon dioxide is higher than that of gas. Therefore, in the same sealed space, carbon dioxide precipitates at the bottom and air floats at the top. Understand this.

2015-03-27
Three baking processes: drying, pyrolysis and cooling

Three baking processes: drying, pyrolysis and cooling

Fresh coffee beans usually have about 12 percent moisture, and when the beans are roasted at high temperatures, from 500 to 800 degrees Fahrenheit, the moisture evaporates as the beans heat up. Most of the moisture is released in the first few minutes of baking, although the typical baking time in the United States is about 15 minutes. at 8

2016-04-26
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