Why does coffee taste sour? How to make hand-brewed coffee delicious?

Authentic coffee is made by grinding coffee beans and brewing them with a siphon pot. Coffee has a refreshing effect. But if you drink coffee frequently, it is easy to taste sour coffee, which is actually normal. So why is this?

Why does coffee taste sour?

Coffee Beans

Coffee from different origins has different flavors. Coffee beans produced in Asia tend to be bitter and mellow, such as Mandheling and Yunnan beans. Coffee beans from Central and South America have a more balanced flavor, such as Costa Rica, Brazil, and Jamaica.

Coffee beans produced in Africa are more sour, such as Yirgacheffe, Kenya AA, and Oiran. Drink more coffee beans from different origins and you will find the one you like best.

Roasting degree

The taste of coffee beans varies with the degree of roasting. Generally speaking, experienced coffee lovers like to challenge themselves and choose lightly roasted coffee beans.

Lightly roasted coffee beans have a higher content of organic acids, presenting a rich and varied sour taste. For coffee novices, you can choose coffee beans that are roasted a little darker, which have a sweeter and mellower taste.

Treatment

The common processing methods on the market are water washing and sun drying. The coffee beans processed by water washing taste cleaner and are suitable for beginners.

Coffee beans processed by the sun drying method are more popular among experienced coffee lovers because they have a longer fermentation time and more flavors. In addition, coffee beans processed by the sun drying method have a higher defect rate and are more likely to have off-flavors.

How to make delicious hand-brewed coffee

Hand-brewed coffee is a type of black coffee, similar to American coffee. It uses filter paper to filter out the oil in the coffee, and the taste is more refreshing than American coffee. It can also choose beans with different flavors and roasting degrees according to personal taste. Few utensils are needed, a cone filter cup, a cloud pot, a hand-brewed pot, filter paper and a thermometer.

Four important parameters of hand brewed coffee:

1. The ratio of water to coffee powder is 1:14;

2. The quality of water is very important. It must be clean and free of impurities, and the water temperature should be between 90-96 degrees;

3. Grinding degree: the coffee powder should not be too coarse or too fine. If you go to a coffee shop to buy coffee beans, tell the clerk that you want hand-brewed coffee, and they will help you grind it directly;

4. Freshness. There is an optimal usage time for opened coffee beans. Generally, it is best to use them up within 7 days, otherwise it will affect the flavor of the coffee and it will not be so fragrant!

The production process is divided into three steps:

1. Fold the filter paper along the edge of the filter paper, fold it front and back, so that it fits the filter cup, then use hot water to wet the filter paper and preheat it so that it fits the filter cup completely.

2. Pour an appropriate amount of ground coffee powder into the filter paper, shake it to flatten the surface of the coffee powder, then take an appropriate amount of hot water, slowly and evenly pour water from the center of the coffee powder, and slowly circle from the middle to the edge until all the coffee powder is wet, then hold on to steaming for 5 seconds. Steaming extraction is the most serious step in the entire hand-brewed coffee, which directly determines the taste of the coffee. Insufficient steaming will result in insufficient coffee extraction and a light and watery taste. Steaming for too long will result in excessive coffee extraction and a bitter and spicy taste!

3. Then continue to pour water from the center, the water flow can be slightly from slow to fast, so that the coffee liquid level rises steadily, until all the water is poured out. Then wait quietly for the coffee to drip and slowly shake the cloud pot to make the coffee flavor more uniform!

When is the best time to drink coffee?

Morning

Coffee can improve constipation. The effect is particularly significant if you drink it in the morning, but it is not very effective if you drink it at other times.

30 minutes before and after meals

Coffee can promote digestion. In order to make full use of this function, 30 minutes before or after a meal is the best time. However, since coffee can affect the absorption of iron and iron deficiency, people with iron deficiency and anemia should avoid it as much as possible.

Before exercise

Drinking coffee 30 minutes before exercise can boost metabolism, help burn more calories, and make exercise more effective.

When tired

Many people drink coffee to stay awake. A cup of coffee can keep us alert for four hours. So drinking a cup after a nap can help us stay awake. But drinking it for a long time will not have much effect.