What coffee is made of: does a trapezoid dripper still have a place in pour-over brewing?

Trapezoid drippers deliver a more balanced cup and a solid mouthfeel, even though conical drippers now dominate bar counters. Melitta released the first dripper in 1908 using an inverted trapezoid shape with inner ribs and a small outlet hole, requiring fan-shaped filter paper. In 1958 Kalita upgraded the design from one hole to three, greatly increasing flow rate and improving results.

A dripper's shape, ribs and bottom holes all affect extraction, and the trapezoid's structure supports stable, beginner-friendly brewing. Comparative brews with the V60 show clear flavor differences. Under the light-roast trend the trapezoid has retreated from view, yet its extraction strengths remain, which is why it still appears among classic coffees equipment discussions.

In the world of pour-over coffee equipment, conical drippers dominate the mainstream, while the once-popular trapezoid dripper appears less and less on bar counters. This doesn't mean it's not useful—on the contrary, thanks to its unique structure, the trapezoid dripper delivers a more balanced cup and a solid mouthfeel. From Front Street Coffee's perspective, this article reviews the history of the trapezoid dripper from its invention to its improvements, breaks down how its shape, ribs, and bottom holes affect extraction, and through a comparative brew with the V60, directly presents the flavor differences between the two drippers. It also explains why the trapezoid dripper has gradually retreated under the light-roast trend, as well as its beginner-friendly, stable extraction characteristics.

The answer is no. The trapezoid dripper also has its own extraction strengths—it's just that fewer people use it nowadays. Today, Front Street Coffee is here to talk about this topic. Like the conical dripper, the trapezoid dripper gets its name from its unique geometric design—an overall structure that is wide at the top and narrow at the bottom, forming an inverted trapezoid, hence the name "trapezoid dripper." Also, because the filter paper used with it is shaped like a fan, it is also called a "fan-shaped dripper."

The world's first dripper to appear used a trapezoid design. In 1908, Germany's Melitta released the world's first coffee dripper. As Front Street Coffee previously introduced, it was an inverted trapezoid with multiple ribs on the inner wall for venting, and a small-diameter outlet hole at the bottom, requiring fan-shaped filter paper.

However, because the number of outlet holes was relatively small and the diameter was not large, the flow rate was quite slow. By 1958, after pour-over coffee became popular in Japan, Kalita released an "improved version." The core of this improvement was upgrading the original single hole to three holes, greatly increasing the flow rate and improving the brewing results considerably. Because of this, this dripper became a classic among trapezoid drippers. Next, Front Street Coffee will use this dripper to explain the brewing advantages of trapezoid drippers.

Front Street Coffee once mentioned in another article introducing drippers that a dripper has three key designs that affect extraction: shape, ribs, and bottom holes. The ribs of the Kalita 101 trapezoid dripper are arranged vertically, mainly for venting. Its shape is wide at the top and narrow at the bottom, so the coffee grounds pile up into a thicker bed in the dripper. A thicker bed can amplify extraction differences during brewing—the coffee grounds on the surface receive more extraction than those at the bottom, causing grounds in different positions to dissolve different amounts of flavor compounds, giving the brewed coffee more layers.

But because the bottom of a trapezoid dripper is a line rather than a point, the bed it forms is not as thick as that of a conical dripper, and the extraction differences are relatively smaller. Although the Kalita 101 has three outlet holes at the bottom, the hole diameters are not large, so the flow rate won't be as fast as other drippers. As a result, the coffee undergoes more immersion during brewing, resulting in fuller extraction, and ultimately a more balanced taste and a more solid mouthfeel in the cup.

Seeing is believing. Next, Front Street Coffee will do a comparison between the V60 and the trapezoid dripper to see exactly how the coffees they brew differ. The coffee beans Front Street Coffee uses this time are still Front Street Ethiopia Huakui from the bean list, with the following extraction parameters: Dose: 15g Coffee-to-water ratio: 1:15 Grind size: Ek43 setting 10, 75% passing a No. 20 sieve, fine sugar grind Water temperature: 92°C Brewing method: three-pour (30+120+75)

Since the brewing process is still a three-pour method, Front Street Coffee will skip it here. And because the hole diameters differ, there is some difference in extraction time between the two: brewing Huakui with the V60 took 2 minutes, while the trapezoid dripper took 2 minutes 20 seconds. In terms of taste, the Huakui brewed with the V60 had very rich layers, with prominent and distinct flavors of orange blossom, citrus, strawberry, and berries—sweet and tart, smooth, with an oolong tea finish; while the Huakui brewed with the trapezoid dripper, although not as distinct and three-dimensional in flavor layers as the V60, was more balanced in taste, more solid in mouthfeel, and had a longer finish.

As you can see, under the same parameters and technique, the two brewed coffees have completely different characters. There is no good or bad here—it mainly depends on personal taste preference. Those who like prominent flavors and a light mouthfeel can choose V60 brewing; those who prefer balanced taste and a solid mouthfeel can choose a trapezoid dripper.

Now let's return to the topic of "why trapezoid drippers are so rare." Simply put, they have exited the mainstream stage. What does that mean? When trapezoid drippers were first created, dark-roasted coffee was the mainstream, so dripper designs mainly focused on how to make the brewed coffee richer and more full-bodied, with slightly weaker flavor expressiveness. But later, coffee's mainstream shifted from dark to light roasting, and people began to focus on flavor expression. The public's functional demands for drippers also changed, and they began to need drippers that could better showcase and highlight flavors—and the V60 was exactly that, so it received a great response as soon as it was launched. The V60's explosion not only made itself famous, but also gave the conical dripper market tremendous exposure. From then on, major coffee equipment manufacturers began researching and designing conical drippers, releasing various new conical drippers every year.

By contrast, drippers of other shapes, including trapezoid drippers, became rarer and rarer, because few manufacturers put effort into them anymore. They are either keen on designing conical drippers or researching drippers with stranger, trickier shapes. With lower update frequency and a shrinking share among drippers, they naturally become rarer. But Front Street Coffee still says this doesn't mean trapezoid drippers or drippers of other shapes are not useful—they still have their own brewing characteristics. For example, because the bed of a trapezoid dripper is not so thick and the ribs are not so prominent, the coffee undergoes immersion extraction for a long time, so it does not demand the barista's pouring skill as highly as a conical dripper.

Even for beginners, as long as parameters such as dose, grind, water temperature, and ratio are set, they can easily brew a delicious cup of coffee even without much skill. Therefore, trapezoid drippers are often favored by major chain brands—they can narrow the experience gap between novices and veteran baristas, stably providing customers with a delicious cup of coffee. - END -

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