How to make coffee?

Before brewing coffee—you must have good fresh water prepared. That's because when boiled, fresh water will produce an appropriate amount of carbon dioxide to promote the coffee's aroma. But continuously boiling the water will reduce the evaporation of carbon dioxide. The best water temperature is 95°C. If the water temperature is too low, the coffee flavor will not be fully released while too high temperature will deteriorate some coffee components.  too much or not enough is not good.

How to make a cup of coffee?

1. Warm up the cup. 

When cold, tannins contained in the coffee will work and make it sour. Thus, before you start brewing coffee, you should pour hot water into the cup to warm up it.

2. Grinding coffee beans. 

The powder size of hand ground coffee should be determined by the characteristics of the coffee beans. For deep-roasted coffee beans, the powder particle size should be slightly bigger than that of medium-deep roasted beans. For example, carbon-fired, deep roasted coffee beans can be 4 in gauge, and medium-deep roasted beans such as Blue Mountain should be 3.5. If the bean powder particle is too large, the brewed coffee won't be strong enough. However, too fine bean powder would render the coffee very bitter. 

Another issue is the amount of coffee beans needed. The amount of beans for a cup of coffee is 12-14g. The amount of 2 cups should be calculated by the formula: (portion of one cup - 2) x 2, that is 20 g. Similarly, the amount of three cups or more is  30g of coffee beans for 3 cups, 40g for 4 cups, and so on.

3. Warm up the coffee pot. 

Pour a small amount of hot water into the bottom pot, shake it a few times before pour it out. Then put the firm coffee flour (agglomerate coffee powder) on the bottom pot.

4. Steaming. 

The purpose of steaming is to suffocate the aroma of coffee and prepare for the second brewing. The water temperature for steaming should be 93 degrees, pour water from the center of the coffee flour, and make a circle 2-3 times so that the whole coffee flour can absorb water evenly. Water drops by 3-5 droplets is the best...

5. Brewing. 

After steaming, place the pot on a moist cloth to cool down. After 25-30 seconds, the water temperature drops to 89-91 degrees, and you can start brewing. Generally, the proper brewing water temperature of moderately roasted coffee beans (inert beans) is 91 degrees, which can extract the aroma of coffee beans better. For deep roasted coffee beans (lively beans) , the best brewing temperature is 89 degrees, which is enough to extract the aroma and bitterness of coffee beans. If the water temperature is lower, it may taste a little light, and too high temperature would make the coffee extremely bitter.

6. Fill the cup. 

Before filling the cup, you should shake the coffee in the pot gently to make it it even in each cup. Then pour out the warming-up water in the cup and pour the coffee into it. You can enjoy it now!

Tips: 

The entire coffee brewing process from cup warming-up to serving (within 4 cups), the duration should not exceed 2 minutes, otherwise the taste of the coffee will become sour, astringent, and lose its original flavor.