After more than 110 years of development, the types of filter cups have become dazzling, how to choose and fit.

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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.

With the invention of coffee filter paper and filter cup at the beginning of the 20th century, after a hundred years of evolution and improvement, there are a variety of filter cups and filter paper on the market, not just in appearance. It also affects the flow rate and extraction time so that the taste of coffee is different under each kind of utensils. When making coffee by hand, collecting filter cups is not only pleasing to the eye, but also can fully enjoy the multiple pleasures of brewing coffee because of different characteristics of filter cups. If you can clearly understand the characteristics of each filter cup, supplemented by different water injection speed, water flow thickness, coffee powder thickness and so on, you can make a cup of coffee that suits your taste.

The groove on the inside of the filter cup leaves a gap between the filter cup and the filter paper, so that the water column will not pass quickly along the edge of the filter cup because of capillarity, so that the coffee powder is not fully extracted. The gap also allows the excess hot air to be discharged smoothly along the groove during steaming, and the aroma of the coffee is fully released. Therefore, each style of filter cup will also make a lot of effort in the design of the groove, such as the diamond filter cup can make the convection of water and air reach an excellent flow rate because of its special cutting surface design. The Kalita wavy filter cup is matched with wavy filter paper to make water injection more uniform, just like the groove design of the general filter cup.

At present, the most common shapes of filter cups on the market include cones and fans. In addition, there is a wavy filter cup which is similar to the conical filter cup in shape but has a flat shape at the bottom. As well as the diamond filter cup designed by the diamond cutting surface and the supporting point of the filter paper made by diamond relief.

Fan-shaped filter cup (trapezoidal filter cup, table-shaped filter cup)

The bottom of the fan is usually one hole, two holes, three holes, the flow rate is slow, so the coffee extraction time will be longer, we should pay attention to the use of filter paper and filter cup fit degree, if the filter paper will fit the lower hole, that may cause the flow rate is too slow to cause excessive extraction, coffee bitterness, so should choose to match rather than fully fit.

The design of this shape was designed together when Melitta Bentz made coffee filter paper in 1908. At first, it was a single-hole design, but later improvements led to the emergence of more holes. Several holes determine the flow rate, depending on the number of holes that each person needs for coffee.

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 grooves recommended by many people are only half of the cup body or less, and the filter paper without grooves fits the cup body, resulting in a slower flow rate, which is suitable for coffee with a stronger taste; while the other one that most people use is Hario V60, which is a classic tapered filter cup classic and has a high market share among hand players all over the world. Because of its dense long groove design, the air in the coffee powder can be discharged to speed up the flow rate of the filter cup, extract the distinct fragrant and sour flavor, and the spiral groove distribution, increasing the contact path between coffee powder and water, in the ultra-fast flow rate can still ensure a sufficient amount of flavor, the coffee taste is relatively bright, clean, people who like obvious aroma and fruit acid must play, Taiwan area handmade coffee final Ji Shu also used V60.

Wave filter cup (cake filter cup)

Wave filter cup is a patent of KALITA. The filter paper used together is like the crease of cupcake paper. It is also called cake filter cup. However, Wave is used in English, and many people still call it wave filter cup. Compared with the old trapezoidal filter cup with relatively slow flow rate, the groove design of Sanyo trapezoidal & kalita wave burning is quite different. On the one hand, the texture of the groove becomes obvious, on the other hand, it increases the groove on the bottom drainage line, which can support the filter paper to stick, so that the overall flow rate of the filter cup is much faster and more aroma can be made. Due to the design of the drainage line of the trapezoidal filter cup, moderate water retention makes it easier for coffee powder to come into contact with water and makes the extraction more complete. It can be said that it completely develops the good design of the trapezoidal filter cup and corrects the flaw that the slow flow rate taste is too thick. In recent years, wave filter cups are often seen in hand coffee competitions, and the reason why the market share is not so high is that wave filter paper is more expensive, and each piece of filter paper is about twice that of ordinary filter paper, which is also a small disadvantage.