What is a french coffee brewer next to a Clever Dripper?

The Clever Cup is an immersion-style dripper with a bottom piston valve: pour in hot water and pressure closes the valve, so grounds steep fully, then the valve opens and paper filtration takes over. That combination of full immersion and paper filtering is what separates it from devices such as the French press, and it makes the Clever Cup stable and simple for beginners.

For context, Melitta's paper-filter dripper dates to 1908 in Germany, while the French press arrived in Italy in 1933. A comparison using one champion bean across a V60, the Clever Cup, and a French press shows how grind size, water temperature, and technique change extraction, so the same coffee can taste noticeably different by device.

As a representative of immersion-style drippers, the Clever Cup features a bottom piston valve design that combines the full immersion environment of a French press with the paper filtration function of a pour-over dripper. It is simple to operate and highly stable, making it very suitable for coffee beginners. This article will systematically introduce the origin, working principle, advantages and disadvantages of the Clever Cup, and compare it side by side with the French press. At the same time, using [Front Street Hualkui] champion bean as a sample, brewing experiments will be conducted with a V60 dripper, Clever Cup, and French press respectively, presenting grind size, water temperature, technique, and final flavor performance one by one, helping readers intuitively understand the extraction differences of the same bean with three devices and find the brewing method that best suits their own taste.

The Clever Cup is essentially a type of pour-over dripper and has gained broad international recognition. Many specialty coffee shops list it as a designated brewing device. Its low operating threshold and good consistency make it easy even for beginners just getting into pour-over to make a good cup of coffee. Cleaning after use is also very convenient, making brewing coffee at home no longer cumbersome. It can be said to be one of the most worthwhile devices to own in home coffee scenarios.

In 1908, Mrs. Melita of Germany was inspired by her son's draft paper and used it to filter coffee grounds, accidentally giving rise to the world's first dripper designed for use with paper filters. By 1933, Caliman invented the French press in Italy.

Coffee equipment has continuously innovated through the ages. Some pursue better taste, some focus on richer flavor layers, and others are dedicated to making it easy for beginners to get a good cup of coffee. An excellent piece of coffee equipment can help coffee beginners consistently reproduce the same flavor output, and the Clever Cup is exactly such a dripper that is especially friendly to beginners.

The origin of the Clever Cup is difficult to verify. What is currently known is that it was invented in Taiwan, China, in the early twenty-first century.

The core design of the Clever Cup lies in the piston valve at the bottom: after hot water is poured in, water pressure causes the piston valve to close automatically and stop the water, allowing the coffee grounds to fully immerse. After immersion is complete, placing the dripper on a mug presses the base and opens the piston valve, so the coffee liquid slowly flows into the lower vessel. It can be said to combine the strengths of both the French press and the pour-over dripper—it provides the full immersion environment of a French press, retaining coffee oils and making the flavor rich and rounded, while also having the filtration capability of a pour-over dripper, thoroughly filtering out coffee fines so they do not affect the mouthfeel.

After understanding the design principles of the Clever Cup, Front Street will now discuss its advantages and disadvantages. Because the Clever Cup is an immersion-style dripper, compared with drippers such as the Hario V60, the difference in taste between the Clever Cup and pour-over is that the Clever Cup's flavor is more intense and the mouthfeel is fuller and smoother.

Another immersion-style device like the Clever Cup is the French press. A French press consists of a heat-resistant glass container and a metal filter with a plunger, and it is very simple to use. When brewing, simply immerse the coffee grounds and hot water together in the container, then push down the metal filter with the plunger to separate the coffee grounds from the coffee liquid, and you get a relatively clean cup of coffee.

The difference between the French press and the Clever Cup is that the Clever Cup uses paper filters, and the density of paper filters is much higher than that of metal filters. Therefore, coffee extracted with the Clever Cup is clearly superior to the French press in cleanliness. But precisely because it uses paper filters, a considerable portion of the coffee oils is trapped on the paper, so the Clever Cup's output is not as full-bodied as that of the French press.

Next, Front Street will use the Hualkui bean for a side-by-side comparison. As usual, let's first introduce the Front Street Hualkui bean.

Hualkui 5.0 comes from the Hambela sub-region under the Sidamo region. African beans are usually named after the region or processing station, for example, Ethiopia's Gedeb Gedeb comes from the Gedeb cooperative in the Yirgacheffe region, and Konga comes from the Konga cooperative in the Yirgacheffe region.

The name Hualkui comes from the fact that in 2017, Ethiopia's Buku Abel estate produced a batch of naturally processed coffee beans and sent them to that year's TOH competition, ultimately winning the championship in the natural group of the 2017 TOH competition. In the same year, a green bean trading company in Beijing imported the same batch of coffee beans. Since that batch won the natural group championship at that year's TOH, it was named Hualkui. In Chinese, Hualkui means the chief of all flowers, and it also carries this green bean company's earnest expectations for this bean.

Also in 2017, in the China division of the World Barista Brewing Championship, most contestants chose Geisha variety coffee beans, while Li Jianfei alone used non-Geisha beans and ultimately won second place. The fame of the Hualkui bean has continued to rise as a result. The flavor profile of Front Street Hualkui is lively berry acidity, bright citrus acidity, honey sweetness, and mango juice-like mouthfeel. Below, Front Street will make a comparison using a V60 dripper, Clever Cup, and French press. The amount of coffee powder used is 15 grams, with a coffee-to-water ratio of 1:15.

[Hario V60 Dripper]

The name of the V60 dripper comes from the 60-degree angle formed by its conical design, plus 12 long ribs that guide the water flow toward the center. The large opening at the bottom allows the barista to adjust the extraction time of the coffee flavor by controlling the flow rate.

Because the V60 dripper has a relatively fast flow rate, and Hualkui coffee beans use a medium-light roast to highlight fruity aroma and acidity, Front Street recommends using a medium-fine grind (80% passing through a Chinese standard No. 20 sieve) and a higher water temperature (93°C). For the brewing technique, a three-pour method can be used.

First pour 30 grams of water and bloom for 30 seconds, then pour to 125 grams in the second stage, and in the third stage pour to 225 grams and stop. The total extraction time is about 2 minutes.

The Front Street Hualkui brewed with the V60 has a flavor profile of mixed berry aroma, creamy strawberry and passion fruit sweetness and acidity, honey sweetness, and a full mouthfeel.

[Clever Cup]

The bottom of the Clever Cup consists of two parts: the outer layer plays a supporting role, and the inner layer has a press-type switch valve. After brewing is complete, place the Clever Cup on a serving container to filter out the coffee liquid. Because it is an immersion-style dripper, Front Street recommends a medium grind (75% passing through a Chinese standard No. 20 sieve) and a water temperature of 90°C.

First pour 30 grams of water and bloom for 30 seconds, then pour hot water in a thin stream into the center of the dripper up to 225 grams. At 1 minute 50 seconds, open the valve to filter out the coffee liquid.

The Front Street Hualkui brewed with the Clever Cup also has a mixed berry aroma, a full strawberry juice-like quality, a creamy smooth mouthfeel, and a black tea-like aftertaste.

[French Press]

The French press extracts coffee through immersion. The longer the immersion time, the more substances are extracted from the coffee until saturation. Because the gaps in the metal filter are much larger than those in paper filters, more oils are retained in the coffee liquid, making the mouthfeel smoother, but at the same time fine particles that cannot be fully filtered out appear, affecting the mouthfeel. Front Street recommends a medium-coarse grind (70% passing through a Chinese standard No. 20 sieve), a water temperature of 92°C, and a four-minute immersion.

Place the ground coffee powder into the pot, then pour in 225 grams of hot water, pull up the plunger, put on the lid, wait four minutes, and then slowly press the plunger down.

The Front Street Hualkui brewed with the French press has a mixed berry aroma, a full juice-like quality, a creamy smooth mouthfeel, and an overall rich body.

The above content is compiled by CoffeeHunters, a coffee news website.