Hand-made coffee course hand-made coffee grinding thick and thin ghost teeth? Flat knife? What exactly does the bean grinder want to choose?

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The lower the proportion of fine powder, the better? Or the more uniform the better?

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When it comes to the pros and cons of bean grinders, most books and online articles often mention two points.

"Fine Powder proportion" and "Grinding uniformity"

We often see that many open-box articles of bean grinders will focus on the proportion and uniformity of fine powder.

But is it true that the less fine powder the better? The more uniform the grinding, the better?

So we designed several small experiments and used cup test-hand flushing to verify them.

First of all, use the "cup test" on the extraction

Most people agree.

'Little Fine Powder 'has a clean and light aroma and taste

More fine powder will bring miscellaneous feelings.

"uniform grinding" will bring a clear aroma and front flavor.

Less uniform grinding results in round aromas and relatively complex flavors (including good and bad)

But in fact, there are some participants who don't care much about the sense of astringency.

I chose the bowl with more fine powder because it has better sweetness and full aroma.

The effects of "low fine powder" and "uniform grinding particles" have indeed been recognized by more than half of the participants.

What is the effect of fine powder in hand punching?

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In the second half, we used hand punching to examine the effect of fine powder.

Machines with less fine powder are favored unexpectedly no more than those with more fine powder.

For example, in KNG and Fuji Ping Dao

The fine powder content of KNG is about 5%, but that of Fuji Ping Dao is about 12.5%.

Also a flat knife machine, Xiao Fuji also has the same support as KNG.

Most of the reasons for choosing Xiao Fuji are rich layers and sweetness.

The reason for choosing KNG is because of its clean taste and soft acid value.

Basically, the reason for choosing is not much different from the cup test.

However, due to the addition of hand-washed filter paper and manual control

It can reduce the negative impact of fine powder.

In the original cup test, the cup test result with uniform and less fine powder is the most favored by everyone.

But when it comes to hand flushing,

KALITA KDM-300GR, a bean grinder with only 1% fine powder and fairly uniform particle size distribution

Instead, it's not so popular.

The reason is:

"it's too formal, but it doesn't have any personality and impressive characteristics."

In your evaluation and feedback, we can also say with certainty that

The bean grinder does not need 'very little fine powder' and 'extremely uniform' to be called a good bean grinder.

Because in the hand flushing, we can use the choice of techniques and equipment to give full play to the advantages of fine powder and uneven distribution.

Practical drinking experience

Flat knives with uneven grinding and particles easy to have large and small pieces are also generally favored.

If you cook properly in drinking, filter through the filter paper and adjust the cooking method.

The aroma and sweetness brought by fine powder make it easier to amaze the drinkers.

Instead of following the trend, follow your own tongue

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What flavor you like affects how you choose the bean grinder, and then affects the techniques and filtering equipment you need to use.

So, of course, it can be used as a reference from everyone's general choice.

But in fact, whether the flavor of a bean grinder meets the demand

Or only your tongue knows best.