How do you drink coarse coffee powder? The importance of choosing the right grinding machine (bean grinder)

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How to determine and set the grinding degree of espresso coffee

He wants to do good; he wants to do good.

The meaning of interlocking; grinding is also a key link to be paid attention to.

However, how to understand the advantages and disadvantages of various grinders (bean grinders);

Perhaps no one has mentioned the discussion on this important link.

Here can be roughly a discussion so that people also pay attention to this link;

Grinders (bean grinders) can be broadly divided into three styles:

(1) Propeller type bean grinder (grinder)

(2) Manual bean grinder (grinder)

(3) Sawtooth type bean grinder (grinder) Burr Mill

(1) Propeller type bean grinder (grinder)

Propeller-type bean grinder uses a motor to rotate propeller-type blades;

To help grind coffee beans into powder,

Some people would joke that it was chopping beans, not grinding them.

Once the coffee beans have been ground in this grinder;

Flavor naturally lost a lot,

Therefore, it is not recommended to use this type of grinder.

But this style of grinder is cheaper in price and smaller in size,

without occupying space;

Generally, it is located in the residential or office environment of the city, which will be used as a reference for purchase.

This type of grinder has several disadvantages:

● Uneven grinding

Because this grinder will chop coffee beans a condition;

so that the powder after grinding is not too fine,

Otherwise, it is too thick phenomenon will occur.

Because too fine a condition will lead to bitter taste,

Because it is difficult to have a uniform phenomenon;

Therefore, when grinding a lot, it will also happen that the beans that cannot be cut off the upper layer

So that the phenomenon of excessive roughness occurs.

Normally, coffee ground in a good grinder

It usually forms a normal distribution,

And the center of the curve is the target grinding degree,

It also means that the grinding degree of coffee powder is mostly in line with the target.

However, the propeller-type bean grinder randomly chops beans by blades;

And that leads to another random distribution curve,

The ratio of too thin or too thick is full of high.

This type of grinder can reduce such disadvantages by several methods;

is to grind as little as possible.

And he took the grinder in his hand,

Use your thumb to snap the top lid,

In the way of shaking up and down,

This way, the leaves can be cut evenly to the coffee grains.

● Easy to form high temperature during grinding

Propeller grinder compared with other two types of grinder;

Propeller bean grinders are the fastest in terms of rotational speed.

After grinding coffee beans at high speed, it is easy to produce high temperature.

Perhaps some people will not believe that such a situation exists;

then it may be that after using such a grinder,

Touch it lightly with your fingers and you can feel its high temperature.

It has been said before that the fine substances, that is, the aromatic substances, have very low boiling points;

However, the condition of the bean grinder under use

High temperature conditions are likely to occur,

It will also force the coffee to be mellow,

Lost in the grinding process,

It's hard to stay in the coffee you drink.

● Unable to set grinding degree (grinding coefficient)

Propeller bean grinders usually (almost) have no setting function to adjust the grinding degree (grinding coefficient);

The grinding degree (grinding coefficient) is judged only according to the grinding time.

Normal grinding time; about 0--6 seconds would be better for a follicle pot, press pot or stopper pot or Belgian Vienna pot

if it is to be used in espresso;

It may take at least 20 seconds.

However, because of this friction time;

So that the resulting temperature rise,

It is also equivalent to evaporating the aroma of coffee at the same time.

● Easy to form lumps

Due to propeller blades operating at high speeds;

It causes the coffee powder to form a vortex,

But also because centrifugal force is too large,

will result in an excessively fine powder,

Form a lump and stick around,

However, these lumps will also affect the quality of coffee when brewing

Hot water can be prevented from brewing coffee on average

so as to cause uneven extraction.

● High risk in switch design

In the design of the propeller bean grinder;

Most of them use the pressure of closing the lid to

To make the trigger switch.

but when coffee beans are placed or when cleaning is performed;

If you accidentally push the switch,

And the finger is right next to the blade,

well, one can imagine the consequences.

accidents in this regard;

I've heard of people breaking their fingers.

So it's about safety;

The plug (power supply) should be unplugged at ordinary times.

But after placing the coffee beans;

Only plug in the plug (power supply).

and after use;

It is better to unplug the plug (power supply) immediately.

That is to say, whether it is the state of placing coffee beans or cleaning actions;

The power supply should be interrupted.

On the other hand, when cleaning up;

Do not touch water inside and outside the fuselage,

And wipe it with a rag.

The plastic cover on top; can be cleaned with water.

But remember to clean it with water; be sure to dry it completely.

(Water; warm or hot water is easier to remove grease from coffee)

(2) Manual bean grinder (grinder)

Design of manual bean grinder (grinder);

It can be said that nothing has changed for more than a hundred years.

Even with the latest models on the market,

At best, they tend to look more classically elegant.

Manual bean grinder (grinder) hence the name Si Yi;

That is, the way you need to rotate the joystick by hand,

When it rotates, the internal iron sharpener will also rotate at the same time.

When the knife is turned, the coffee beans will be crushed into fine powder

When it becomes fine powder, it will fall into the box of the lower seat (surface).

However, manual grinder (grinder) internal sharpening;

It can be said that it is not dominated by knives,

Because there are no sharp edges or serrations,

Instead, they use angled tapered grinding irons,

Coffee beans are ground by crushing,

This method is similar to the earliest use of grinding pestle

It should also be said that it can best retain the aroma of coffee.

But it is in operation;

From my personal experience,

It will be a bit hard indeed.

And the grinding speed is not very fast,

But as I grind myself,

Will grind slowly, listen to the edge of the grinding when issued by the crisp sound,

Believe that if you like coffee, you will take this crisp sound as a full enjoyment.

It was in the dead of night.

The sound produced by the way of hand shaking is still full of whispers;

The friction temperature of the manual bean grinder (grinder) can be said to be quite low;

It's also the least likely to spoil the taste of coffee,

This is one of the reasons why coffee professionals and players like coffee.

Manual bean grinder (grinder) is usually between the rocker and the main body;

There will be a circular knob,

The further down you adjust, the finer the coffee powder you grind.

However, this model is suitable for brewing in drip pot (type);

Because of the grinding coefficient (degrees) of the manual bean grinder (grinder),

It's hard to adjust to the smallest detail,

So if you want to adjust it to match espresso,

It's impossible to do.

(3) Sawtooth type bean grinder (grinder) Burr Mill

Often people do not know that in fact lies in the purchase of bean grinder (grinder);

It should be more important than buying a coffee machine.

Generally lies in the purchase of bean grinder (grinder);

In fact, it is recommended to use a serrated grinder (grinder).

Only because the price is higher,

But it can quickly and stably grind coffee beans evenly into coffee powder.

Sawtooth grinder (grinder) is not easy to operate;

Generally speaking, there is a function to set the grinding degree (coefficient) setting.

It is convenient for users to operate

It is clear that

And with their desired degree of grinding (coefficient) to adjust.

Abrasion (coefficient) will mostly be Arabic numerals (1, 2, 3, 4, 5)

The smaller the number, the finer the grinding coefficient

Therefore, in general,"1" is the finest grinding degree (coefficient).

However, some will be located on the adjustment of the grinding degree (coefficient) button;

Indicate the grinding coefficient suitable for each kind of equipment.

Some saw-tooth grinding machine (grinder) will be accompanied by instructions;

However, some instructions may not be able to indicate that

Abrasive coefficient applicable to each appliance.

Sawtooth grinder (grinder) above there will be a funnel-shaped container;

It's the unground coffee beans on the container.

Most funnel-shaped containers are transparent;

So to avoid light damage,

And the container has no preservation freshness at all.

So it's recommended that you take as much ground beans as you need and put them in a container,

The rest of the beans can be stored in the original vacuum tank or preservation bag,

Wait until you need it next time before you take it out and use it.

And some zigzag bean grinders (grinders) will have the function of time setting.

The longer the time is set,

The more beans will fall into the grinder.

The more coffee powder you grind.

There will be a container under the saw tooth grinder (grinder)

It's about the ground coffee powder.

Because the freshness of the box is not very good.

So it is generally recommended that you grind as much as you need.

Try not to grind too much coffee powder and store it in containers

If there is an overdose, it is recommended to drink it as well.

I have seen some commercial coffee chains several times.

Or belong to a commercial coffee shop.

Put the coffee beans in the funnel-shaped container above at once.

The most ridiculous thing I've ever seen is to put it up to 7 or even 9 at a time.

However, the speed of use is not that fast.

In addition, there is a strong projection light above.

And thinking about coffee beans like that, even commercial coffee beans.

But when it is handed over to the customer and drunk by the consumer

Can you still drink like that.

I've also seen coffee beans filled with 6 cents and 7 cents except in the funnel-shaped box at the top.

However, in the container below, the ground coffee powder is filled with 4 and 5 minutes.

It feels really crazy in this way.

After the consumers who don't know it drink it,

I don't know if I can stand it in my stomach.

Types of ◎ saw-tooth bean grinder (grinder)

There are two types of knives for sawing bean grinders (grinders).

A kind of flat serrated cutter Flat Burrs or disc serrated cutter

A three-dimensional conical serrated cutter Conical Burrs

It can be explained roughly here.

In order to facilitate the grinder of this type

To have a better understanding.

● plane serrated cutter Flat Burrs or disc serrated cutter

The plane machine is made up of two ring-shaped blades.

It's surrounded by extremely sharp sawteeth.

When it starts, the coffee beans are brought between the blades.

In an instant, coffee beans are cut and crushed into tiny particles.

That is to say, coffee powder.

It lies in the type of plane serrated cutter.

It will be closer to the commercial large bean grinder.

It's like a grinder in a coffee shop.

● three-dimensional conical serrated cutter Conical Burrs

The three-dimensional conical serrated cutter is composed of two conical pieces of iron.

It's like a male and a female.

The surface of tapered iron is covered with serrated teeth.

Coffee beans lie in the gap between two conical iron.

The place where it will be ground into powder.

The temperature produced by the friction of conical serrated cutter is the lowest.

It can also be ground evenly.

But the price is usually higher.

Most of the adoption of this type lies in the more upscale cafes.

And most manual grinders also use this tapered serrated cutter.

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