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The Infinity Dripper: A Perfect Match for One-Pour Brewing

There are countless types of coffee drippers on the market, but few are so tightly associated with a single brewing method. That does not mean none exist - the Infinity Dripper, for instance, has a deeply intertwined relationship with one-pour brewing. Because of that connection, whenever FrontStreet Coffee shares one-pour techniques, friends always message us in the background: "Time to revisit the Infinity Dripper!"

The unusually shaped dripper above is the Infinity Dripper, a new product launched in 2021 by Hario, the renowned Japanese coffee equipment manufacturer. Yes, the same Hario that makes the V60, king of value. In appearance the Infinity Dripper is not far from the V60 - both are conical drippers with a 60-degree angle, differing only slightly in the design of the inner wall. Yet it is precisely those different inner designs that give the Infinity Dripper extraction results completely opposite to the V60's.

Flow Rate Differences: The Infinity Dripper vs. the V60

The V60's defining trait is its fast flow rate. Compared with other drippers, its speed is truly exceptional, thanks to both the 12 prominent rib-like guides and a relatively large bottom hole. The Infinity Dripper is the exact opposite - arguably the slowest of all drippers - and the main reason is that it has no outward-protruding ribs.

The ribs do more than guide water; they also separate the filter paper from the dripper, creating channels for gas circulation. Without prominent ribs, the filter paper hugs the dripper tightly, creating an airlock effect that slows the flow of coffee. (The airlock effect is the phenomenon where gas accumulates during liquid flow and obstructs normal movement.) Fresh coffee holds abundant gas. When we brew, the gases in the grounds are released on contact with hot water. With no dedicated channels for them to escape, gas keeps accumulating inside the coffee bed, occupying the liquid's flow paths and slowing the coffee down. That is why most drippers have prominent ribs: to avoid a big extension of the permeation time.

The Infinity Dripper's Unique Immersion-Style Extraction

The Infinity Dripper takes the opposite approach. Its inner wall deliberately uses a ribless design to extend extraction time, letting hot water accumulate in the dripper and producing an immersion-style extraction. What is more, the Infinity's immersion differs from that of other drippers because its flow is extremely slow. How slow? Roughly one-quarter of the V60's flow rate and about half of the Kono's. At that pace the coffee is in an immersion-style extraction the entire time. Because there is no valve at the bottom to block the flow, we can think of it as a method that combines drip and immersion. It is precisely this trait that earned the Infinity Dripper online nicknames such as "the dripper version of the Clever Dripper" and "the lazy dripper."

Strictly speaking, though, the filter paper does not fit completely against the Infinity Dripper. Its inner wall has no protruding guide ribs, but it does have concave exhaust channels. These cannot guide water, yet they let small amounts of gas escape, preventing a total blockage and keeping the flow going. Another reason for the slow flow is the bottom hole, 1.5cm in diameter - the same size as the V30 that FrontStreet Coffee shared yesterday. Owing to that extremely slow flow, the dripper suits one-pour brewing very well, and when the manufacturer launched it, they specifically recommended using it with one-pour brewing. It is because of that recommendation that one-pour brewing became associated with the Infinity Dripper. Mention one-pour brewing and people think of the Infinity Dripper, and vice versa. It is no exaggeration to call it a dripper tailor-made for one-pour brewing.

Infinity Dripper Brewing Guide

Next, FrontStreet Coffee will share which parameters work well with the Infinity Dripper and how to brew with it.

Brewing Parameters for the Infinity Dripper

To use one-pour brewing with the Infinity Dripper, the extraction parameters need to be somewhat extreme, because it cannot form a complete immersion - coffee keeps flowing out. For this brew, FrontStreet Coffee used Ethiopian Santa Virni beans with the following parameters:

Coffee amount: 20g
Coffee-to-water ratio: 1:15
Water temperature: 95°C
Grind size: Ek43 setting 8 (90% pass-through rate on a #20 sieve)

As FrontStreet Coffee explained in the earlier article on one-pour brewing, the method is very simple: create a depression in the grounds in the dripper so the hot water can reach the bottom layer more quickly, then pour all the water in one go. Once everything is ready, we need only pour in all 300ml of hot water.

It is best to pour continuously in a circular motion, which effectively raises the extraction rate. At 45 seconds, FrontStreet Coffee finished pouring the full 300ml. Then we simply wait for the coffee to finish dripping and remove the dripper to end the extraction.

Total time was 3 minutes and 20 seconds for all the coffee liquid to flow through. As you can see, the spent coffee bed is deep and even - perfect enough to delight anyone with a touch of OCD, much like the way its filter paper fits. The brewed coffee is outstanding too, with prominent flavor characteristics and considerable sweetness. It tastes somewhat like coffee from a Clever Dripper, but with relatively richer layers. That concludes our brewing sharing.

Worth mentioning: the Infinity Dripper and its saucer are not one piece - they detach. So online you often see clever people taking them apart and installing the valve from a V60 Clever Dripper, assembling a true "Infinity Clever Dripper" with enormous playability. Curious friends can try it too, but if you break it during disassembly, do not blame FrontStreet Coffee.

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FrontStreet Coffee Recommendation

Whatever the dripper, the beans decide the ceiling. FrontStreet Ethiopia Yirgacheffe Gidding is a reliable everyday choice: a washed Yirgacheffe from a cooperative of about 300 farmers in the Worka area, it shows clear citrus, berry, and floral notes with a green-tea-like finish. Its acidity is soft and bright rather than sharp, which makes it a very forgiving bean for anyone learning to dial in a new dripper.

For a more dramatic cup, FrontStreet Ethiopia Huakui is worth trying. It leans heavily into tropical fruit aromatics - strawberry, passion fruit, and jackfruit - with pronounced sweetness, very low bitterness, and a smooth, juicy body, which makes it an excellent way to see how much aroma a slow, immersion-style extraction can pull out.