A brief analysis of several steps and functions in coffee making

1. Roasting of coffee

Roasting is an important process of making coffee. Roasting is to stir-fry the coffee beans, but the time should not be too long. There are three kinds of roasting: light roasting, cinnamon roasting and thick roasting. Roasted coffee beans make the aromatic oil dissolve in water and give off a fragrance, but some of the fragrance evaporates away. At present, it is more popular to roast coffee beans quickly with charcoal fire, which can make the aroma of coffee basically non-volatile.

2. Crushing and mixing of coffee

The roasted coffee beans are fragrant and fragrant. Ideally, the coffee beans are ground before each drink, so the flavor is better. Generally speaking, coffee with fine grains after grinding has a strong flavor, while coffee with coarse particles after grinding is fragrant. In order to make the coffee strong and fragrant, the fine coffee powder can be mixed and mixed to drink.

3. The blending of coffee

In restaurants or coffee shops, there are two common coffee blending methods: distillation and electric coffee pot.

(1) Distillation method

The coffee brewed by distillation not only retains the original delicious flavor of the coffee, but also can be seen clearly from the transparent glass pot. When making coffee, put the coffee powder in the upper pot and the water in the lower pot, heat the kettle with alcohol lamp or gas, wait for the water to boil, raise all the water in the lower pot to the upper pot, turn down the fire, gently stir the coffee powder, and then remove the fire. When the coffee in the upper pot gradually flows into the next pot, it can be poured into the cup to drink.

(2) the method of flushing and adjusting the electric coffee pot

Put the coffee beans in the blender to grind, then add ice water to the water tank in the electric coffee pot, close the lid and turn on the electricity, that is, start the process of automatic flushing, filtering and dripping into the pot below.