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How to grind coffee beans by hand coffee machine_How to grind coffee by automatic coffee machine?

Published: 2024-09-20 Author: World Gafei

Last Updated: 2024/09/20, Professional coffee knowledge exchange More coffee bean information Please pay attention to coffee workshop (Weixin Official Accounts cafe_style) Like to drink coffee, is a hobby, like to brew coffee by yourself, has become a favorite way of life for urban people now, then how can I brew a cup of delicious and affordable coffee by myself? In addition to constantly trying various coffee beans, various coffee makers,

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Like drinking coffee, is a hobby, like to make their own coffee, has become a more favorite way of life of urban people, then how to brew a cup of delicious coffee that is delicious and affordable?

In addition to constantly trying all kinds of coffee beans, all kinds of coffee utensils, all kinds of brewing methods, in fact, many people ignore the most important point, that is, bean grinders.

The coffee powder ground by the bean grinder affects the coffee flavor to a great extent. The ground coffee beans have larger surface area and more contact with water when brewing, and the finer the grinding degree is, the more flavor substances will be extracted.

Of course, some bad flavors will be extracted at the same time. The size of the grinding particles should be determined according to the brewing time, and the uniformity of the particles will also affect the balance of a cup of coffee.

Two commonly used bean grinders

Propeller blade bean grinder

Mainly electric, very common, structurally more like a soymilk machine or a portable juicer, the electric motor pulls a set of metal blades that crush roasted coffee beans in the process of rapid rotation.

A very big defect of this kind of bean grinder is that the grinding particles are uneven, and the grinding process will produce extremely fine powder, as well as relatively coarse particles, so that the coarse particles of the coffee powder will increase the odor and sour taste during extraction. Fine particles will increase bitterness. The coffee made by this device is often not a very good experience.

Disc grinder

This kind of bean grinder is more and more common, the price is more expensive than the propeller type, there are electric and manual, in which manual equipment is cheap and easy to operate.

The grinder generally has two grinding plates, and the grinding degree of the coffee can be adjusted by adjusting the distance between the two plates, so that the coffee powder particles are very uniform, and the taste of the coffee is naturally balanced.

The powder used in espresso is generally fine, and the precision of the equipment will be relatively high. The grinding gap of 1% mm will affect the feeling of a cup of coffee. General follicular coffee is mainly fine grinding, so there will be differences on the bean grinder, but a better Italian bean grinder can also be used to grind single peas.

The grinding plate or cutting plate of the bean grinder usually uses steel or ceramics. The coffee bean itself has a certain hardness, and the grinding plate will become blunt after a long time. At this time, it is not cutting coffee beans, but more like crushing coffee beans, so it will produce a lot of fine powder and increase the bitterness of coffee. Therefore, it is necessary to change the grinding plate regularly, and the investment is small and worthwhile.

Nine key points to pay attention to when grinding coffee beans

Different cooking equipment is suitable for different grinding degrees.

The finer you grind, the easier it is to bring out the substances of coffee, but not all of these substances will be our favorite flavor.

Coffee beans with different roasting degrees will also affect the grinding results.

Because the shallow roasted beans are hard and compact, the powder ground at the same degree of grinding may be coarser than deep roasting.

Turn on the machine before you release the beans.

First start the bean grinder and then put the bean grinding, or first put the bean and then start the bean mill grinding, the difference between the two will also affect the flavor. In order to prevent the knife plate, it is generally recommended to turn on the machine before putting beans.

Clean the bean grinder regularly

Coffee powder is usually left on the knife plate of the bean grinder, and the residual powder may appear during grinding. It is necessary to clean the bean grinder regularly with a brush and a blow ball.

Change the cutter head of the bean grinder regularly

The knife head of the bean grinder will wear out even if it has been used for a long time, and it is not always possible to grind the same coffee with the same scale. Generally speaking, the cutterhead life of the Espresso bean grinder needs to be replaced for every 600lb of beans ground.

Use a sieve to remove coffee powder

The ground powder will have fine powder or silver skin. if you pay attention to it, use a sieve to remove it, which can reduce the astringency and miscellaneous taste of coffee and other negative flavors.

The coffee bean "washing machine" can be used before grinding beans.

More fastidious people will throw a few coffee beans to "wash the bean grinder" before grinding, which can remove the stale powder and smell in the bean grinder more thoroughly.

Accurately weigh the coffee before grinding the beans

When grinding beans, try to weigh the amount of coffee, do not use spoons as a measuring tool.

This is the most practical.

If you don't have a bean grinder, you can take a small amount of coffee beans and ask the coffee shop to help you grind them, but don't grind them one at a time and put them in a container. The flavor will dissipate easily.

The lowest cost of hand-ground coffee

French pressure kettle brewing

Utensils and materials: French kettle, hand bean grinder (optional), coffee beans (optional)

Using utensils to make coffee, this scheme can be said to be the most cost-effective.

A bag of coffee beans can be bought online for 50 or 60 yuan, the freshly baked kind. Of course, there are also a few hundred yuan a pound, which can be chosen according to their own economic conditions.

In fact, French pressure pots are very common in us, but we call them differently, because Chinese people mostly use them to make tea. There is a piston filter in the middle, which can be pressed down after soaking for a while, and the tea and tea will be separated. We mostly use it as a teapot, and we can buy one for more than ten yuan on the market. Of course, it's a little better to make coffee. In fact, this thing is called a French kettle, which is used to make coffee.

If you want to save trouble, you can directly buy coffee powder online and use a pressure pot to make coffee, but the coffee powder on the Internet is generally not fresh enough, because once the coffee beans are ground into powder, the flavor is lost quickly, so it is best to grind and flush now, considering the ratio of performance to price. The lowest threshold is the hand grinder. The price is generally more than 100 yuan, and the process of grinding beans is also a pleasure.

There are actually many ways to use the pressure kettle. The general process is that after the coffee beans are ground into powder and mixed with water, they are filtered through the filter mesh of the kettle, and it is easy to practice.

Use the pressure pot to make by yourself, except beans, the rest is an one-time input, in conversion, the cost of a cup of coffee is very low, than drinking instant coffee every day, economical and delicious.