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Coffee filter cup-an important part of hand-brewed coffee

With the coming of the third wave of coffee and the popularity of single boutique coffee, trickle coffee, also commonly known as hand-brewed coffee, has become more and more popular in Japan. It is not difficult to enter the field of hand-brewed coffee. The utensils prepared are about hand pot, filter paper (metal filter mesh), filter cup and coffee powder, and after the introduction of filter paper and hand-made pot, it has also become the protagonist of this article, filter cups of different shapes. Different coffee tastes.

Conical filter cup

Apart from the fan shape, there is nothing more common on the market than the tapered filter cup. Most of the difference lies in the groove design of the cup body. The groove is the channel that allows the coffee extract to flow into the cup, so the design of the groove also affects the flow rate. For example, the KONO door groove recommended by many people is only half or less than half of the cup body, and the filter paper without the groove fits the cup body, resulting in a slow flow rate, which is suitable for coffee with a stronger taste. In addition, Hario V60, which is recommended by most people, extends the groove to the whole cup body, and the flow rate is faster, and the coffee taste is brighter and cleaner, so it is a highly recommended coffee filter cup. Ji Shu also uses V60 in the Taiwan area handmade coffee final.

Who is the fastest in V60?

So the first set of experiments we did was to continuously inject 400 ml of cold water into the filter paper to observe the flow rate of four V60 filter cups of different materials. Because the acaia intelligent electronic scale is used to record, there will be flow rates and average speeds in different periods of time. (separate the filter cup from the lower pot by hand punching frame during measurement.)

In terms of the flow rate per second, the maximum flow rate of the glass HARIO V60 filter cup can reach 31.4g / s, but the average flow rate is 12.51g / s of the red copper cup! The highest velocity occurs when the water level reaches the highest, but in terms of the average velocity, there is little difference between the four, but the glass filter cup with the most prominent inner spiral groove can provide a faster flow rate when the water level is highest.

Therefore, friends who are used to flooding the water level to a very high level when cooking, it is suggested that you can use a glass filter cup to avoid the smell caused by soaking for too long. Those who are used to keeping the water level in the middle of the filter cup can choose a ceramic V60 filter cup to keep it smooth even when the water level is very low.