Correct use of coffee filter paper! What is the difference between wet filter paper and non-wet filter paper before making coffee by hand?

Careful friends often find that when making different coffees in Qianjie, in addition to the adjustment of parameters, there will also be differences in the process steps. For example, the action of wet filter paper.

When making hot hand-made coffee, the front street is always wet the filter paper before starting to pour powder and brew. When it comes to making iced coffee, instead of wetting the filter paper, pour it into the coffee powder and brew it. So this makes many friends wonder: why sometimes wet filter paper, sometimes not wet filter paper?

Very simple, because the difference between wet filter paper and non-wet filter paper is not very big! You can briefly review the main purpose of wet filter paper. When it comes to wetting the filter paper, it is only for three things: to remove the smell of the paper, to preheat the filter cup, and to let the filter paper fit. However, the utensils and cooking methods currently used in Qianjie will hardly be troubled by these problems. Take filter paper, for example, in the early days, people needed hot water washing to remove the smell of paper, because the filter paper at that time had a very prominent smell of paper. If the smell is not washed away by hot water, it will be added to the coffee in the brewing process, affecting the taste of the coffee. With the development of technology, filter paper without paper smell has been developed, so we naturally don't need to scour to remove the smell of paper.

Then there is the preheating filter cup, the reason why the filter cup needs to be preheated mainly comes from its material! For example, filter cups made of ceramics, glass and other materials have strong heat absorption capacity. If we do not preheat the filter cup with hot water in advance, the filter cup will absorb the energy of the hot water during our cooking process, which will reduce the extraction efficiency. But Qianjie uses non-endothermic resin filter cups, they do not have a strong heat absorption capacity, so naturally there is no need to worry about the negative impact of no preheating. Coffee pots and coffee cups are more likely to be preheated than filter cups.

There is to let the filter paper close the filter cup this case! As we all know, the diversion ribs of all filter cups are specially designed to support part of the filter paper. By supporting part of the filter paper, the coffee powder will have more exhaust channels during the extraction process, so the flow rate of the coffee liquid can be increased. In order to achieve this effect, you need to make the filter paper fit with the filter cup. However, fitting does not necessarily need to be done by wetting the filter paper with water. For example, when cooking ice hands in Qianjie, coffee powder will be used instead of water to "fill" the filter paper.

The specific method is very simple, we only need to fold the filter paper into the filter cup, then press it with your hand, and then pour in the coffee powder to fill it. In this way, the filter paper will be unable to move because of the weight of the coffee powder, and it will gradually fit with the filter cup with the increase of the cooking process. When you see here, you can know clearly that wet filter paper and non-wet filter paper do not have much impact before making coffee.

The main reason why Qianjie wet the filter paper in advance when making hot hand flushing is that it can preheat the coffee pot to prevent the coffee pot from absorbing the temperature of the coffee liquid because the temperature is not enough, while there is no such trouble when brewing iced coffee, so naturally there is no need to wet the filter paper.

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