Does fine powder cause bitterness, astringency and miscellaneous taste during hand flushing? The finer the coffee powder, the more bitter the coffee?

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Recently, I have thought about it. There are so many fine powders of coffee made from a metal filter cup, but they will not be bitter or astringent, and the taste will only be aggravated after a period of time, but it is not enough to say that they become bitter and astringent.

The coffee that comes out of the filter paper has no fine powder, but it will make a cup of bitter coffee.

Therefore, the point that fine powder causes the bitter taste of hand flushing needs to be discussed.

Perhaps it should be said that it is the hand brewing technique that has not been mastered well, so the coffee brewed out has a bitter taste.

In addition, when there is fine powder in the coffee, the coffee will be bitter after putting it for a long time, but according to personal experience, it will take at least a day or so to do so.

As for miscellaneous flavor, I think it has something to do with fine powder.

But I think it's a little inappropriate to say it's miscellaneous. After all, miscellaneous should mean bad, but this kind of miscellaneous is not in the way, and I don't know how to describe it.

If there is less fine powder, the coffee will feel purer and can taste refreshing.

If there are many fine powders, the coffee will feel stronger, taste heavier, not pure enough, but not turbid.

If you flush it well, more fine powder can change the flavor level greatly, and the entrance can be just as delicious. It's a bit like grinding coffee powder a little bit, but sometimes it caters to some people who like to drink heavy coffee.

However, according to personal experience, improving fine powder is the easiest way to adjust the bitter taste. But perhaps it should be said that fine powder will magnify the bitter taste caused by manipulation, so reducing the amount of fine powder also reduces the effect of magnification.

Just suggest, try to correct the technique, practice the basic skills in various situations, should be the most important.

The above experience is for reference.