The principle of adjusting the thickness of coffee grinding the corresponding reference of coffee grinding degree and particle size

Professional coffee knowledge exchange More coffee bean information Please pay attention to coffee workshop (Weixin Official Accounts cafe_style)

How to determine and set the grinding degree of espresso coffee

About grinding

Making a cup of coffee requires important processes such as roasting, grinding, and extraction. Today we're going to talk about the first step in getting a roasted coffee bean-grinding.

- Grinding-

Choosing beans, roasting and grinding before brewing are all key to producing the perfect cup of coffee.

The ideal time to grind coffee beans is before brewing.

Coffee powder and coffee beans, the biggest difference between the two is aroma.

Because ground coffee is easy to oxidize, thus losing flavor, and coffee powder that is not properly stored is very easy to absorb flavor. If you are not careful, coffee will become a strange coffee, so naturally you cannot brew a fragrant coffee.

Therefore, if you have the conditions, you must buy fresh coffee beans. The whole coffee beans can better preserve the essence of them.

It is also because of the characteristics of coffee smell, coffee grounds after drying there are a lot of uses yo, Earth Day Xiaomei also did share, click to view: World Earth Day| Leave mother earth intact for tomorrow!

Grinding Principle-

In general, a good grinding method should include the following four basic principles:

1. The grinding degree suitable for brewing method should be selected;

2. The temperature produced during grinding should be low;

3. The powder after grinding should be uniform;

4. Grind before brewing.

- Abrasion-

The grinding degree of coffee beans will also affect the taste of coffee, so for different brewing methods, the corresponding thickness is very important.

Coarse grinding (such as coarse granulated sugar) is suitable for pressing pots, etc.;

Moderate grinding (such as white granulated sugar) can cope with many brewing methods, such as filter paper brewing method, flannel drip brewing method, siphon extraction method, etc.

Fineness grinding (such as sugar powder), generally suitable for espresso coffee machines.

In constant attempts, adjust the thickness and size, and gradually find their own preferences_

- Grinding tools-

So how to choose bean-grinding equipment? Please pay attention to these two points

Ground coffee powder: whether the size and thickness are uniform enough (unevenness will lead to mixed coffee flavor)

Is the temperature low enough when grinding coffee (too high a temperature will cause premature loss of coffee aroma during grinding)

△

There are two kinds of household bean grinders on the market, manual and electric, each with its own advantages and disadvantages.

Manual, then the price is relatively low, grinding is more uniform, slow grinding is not easy to heat up, noise is small, the appearance is also very beautiful, but the speed is very slow, it is difficult to grind out fine particles, the soft sister with little strength is more laborious to use.

Household electric bean grinder is generally divided into two types: machete-type, sawtooth-type.

Chopper type low price, but grinding thickness is very uneven, not recommended;

Sawtooth type with thickness adjustment button, grinding degree is relatively uniform, save time and effort, but the same price is relatively high.

For the new hand rush, buy a hand or good, not subject to site constraints. Grind it at home and enjoy the fun of coffee_it can also be used as decorations. Many coffee friends have collected many hand grinders.

- Maintenance of bean grinder-

After use, remember to brush off residual powder. If washed with water, be sure to dry it to prevent rust and disintegration of the sharpening blade--

Before the invention of the bean grinder, humans ground coffee beans using stone pestles and bowls. A doctor abroad once experimented with this ancient tool and compared it with a modern bean grinder. It is said that the coffee powder ground by the pestle and stone bowl can best soak out the mellow flavor.

Logically, the pestle should crack the beans naturally on impact without damaging the cell walls and retaining the good stuff of coffee. However, in modern life, it is almost impossible to use pestle and stone bowl to grind coffee beans, so it is particularly important to choose a good grinder.

。