Coffee beans to beat coarse or fine coffee beans and grinding will affect the hand brewed coffee

Coffee is a science, and the deeper the knowledge, the harder it is to see. In addition to making a perfect cup of coffee, there are many specialties. It seems like a simple grinding, but there are many details to pay attention to. If the grinding fails, the flavor of the coffee extraction will be consumed.

First, the correlation between the degree of grinding and cooking machines and tools:

The factors that affect the flavor of coffee are not only the origin, but also the different brewing utensils, the temperature of hot water, the contact mode of hot water and brewing time. And so on are all influencing factors. Hand coffee grinding thickness and brewing utensils also determine the degree of bean grinding, different hand coffee powder thickness standard degree more affect the flavor of brewing. Generally speaking, the grinding thickness of coffee beans can be divided into four types:

Very fine grinding: also known as "concentrated coffee grinding", "Italian grinding".

Particle size: like white granulated sugar

Suitable for brewing machines: Italian espresso machine, Turkish Epico pot.

two。 Fine grinding:

Particle size: between white sugar and fine sugar

Suitable for brewing machines: filter pot, filter paper dripping method and American coffee machine

3. China Grinding:

Particle size: between fine sugar and coarse sugar

Suitable for brewing machines and tools: siphon (air stopper), flannel filter bag

4. Rough grinding:

Particle size: like coarse sugar

Suitable for brewing machines: filter pressure pot, light drop filter pot, water drop coffee machine

Second, the change of the degree of grinding and the flavor of coffee: when brewing, coffee will also be dialyzed and extracted according to the degree of grinding, and the temperature and mode of brewing water with different degree of grinding will also affect the flavor of coffee. Therefore, the basic law summarized is that the finer the degree of grinding, the stronger the bitterness; on the contrary, the coarser the degree of grinding, the lighter the bitterness.

Grinding degree

Coarse

Fine

Surface area

Small

Big

Extractive component

Less

Many

Concentration

Light

Thick

Bitter taste

Weak

Strong

Third, the key points of coffee grinding: the key points of coffee bean grinding are as follows:

The best time to grind coffee beans is before brewing.

The lower the temperature produced by grinding, the better.

Try not to produce fine powder during grinding

Select the appropriate grinding degree according to various cooking utensils

4. Cleaning and maintenance of bean grinder: the key points of cleaning and maintenance of bean grinder are as follows:

Carefully wipe the appearance of the bean grinder.

Clean the exit of the coffee powder.

Disassemble the bean grinder regularly and clean the gears carefully. Wait for a place where it's easy to get stuck in grease.