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In the past, we’ve paired different drippers with Katze. Each combination has come from what our founder, Mike, and the team genuinely love and use in our daily brews. The FLOW Dripper is no exception. Thanks to Mike’s longtime friendship with its designer Erik, we had the chance to try this dripper even before it officially hit the market. In fact, we were still brewing with the FLOW Dripper just this morning. Now, through this holiday sale, we’re excited to share it with you, too. We hope you’ll enjoy it as much as we do!
Why Flow Dripper?
Heading into 2025, most coffee lovers, ourselves included, own more than one dripper. Our team alone uses over ten different kinds, but only a few are in regular rotation. And the FLOW Dripper is one of them.
Designed and developed by Erik Liao, founder of Tri-Up Coffee and 2023 Taiwan Brewers Cup Champion, the FLOW Dripper reflects his brewing philosophy. After more than four years of research, design, and refinement, he created a one-of-a-kind flat-bottom dripper featuring a removable base and a magnetic central column. Its internal structure and rib design increase the contact efficiency between coffee grounds and water, resulting in improved extraction consistency. Unlike many flat-bottom drippers, the FLOW maintains a stable flow rate throughout the entire brew, even as brew time increases. It effectively prevents clogging and reduces the risk of over-extraction. The result? More uniform extraction and a cup that’s brighter and more flavorful compared to other flat-bottom brewers.
This dripper brings Erik’s vision to life: one that supports finer grind sizes, sometimes even finer than espresso, and flexible brewing styles. You can grind fine or coarse. Brew fast or slow. The name "FLOW" not only reflects its consistent flow rate but also invites brewers to experiment, express themselves, and truly enjoy the art of brewing.
Technical Specification
・Product Dimensions (W*D*H): 4.74 inch x 4.74 inch x 0.85 inch
/120.5 mm x 120.5 mm x 21.7 mm
・Material:
Weighing Pan (Black) – Aluminum with anodization of Sandblasting
treatment.
Weighing Pan (Army Green) – Aluminum with Painting treatment.
Body: PC + ABS
・Product Weight: 378 g / 0.83 pound
・Minimum Scale Resolution: 0.1 g
・Maximum Weight Capacity: 2000 g
・Weight Unit: g/oz
・Battery: 420mAh Lithium Polymer Battery.
・Charging Port: Type-C
・Input Voltage: DC 5V/500mA
Patented Protective Structure
Katze has a market-only pop-up screen and patent for its structural protection. Unlike traditional coffee scales that can endure only up to 2 kg of pressure, the Katze scale can support up to 12 kg when the screen is retracted. This design not only provides extra support but also enhances the scale’s pressure resistance, making it resilient against most external forces encountered in daily use. This feature also allows the Katze scale to be easily carried in a bag or stacked for storage without concerns about damaging its accuracy.
High Sensitivity & Response
As a high-end coffee scale, Katze is highly sensitive, with a minimum weight capacity of 0.1 g. It responds quickly on the display with minimal lag, ensuring the accuracy of your brewing is perfected.
More Protections
In addition to its structural protection, Katze is water-resistant on the surface and has been tested to withstand continuous steaming for over 3 minutes while still functioning perfectly afterward. Furthermore, with its charging port located on the side, you don’t have to worry about water from the drain chamber affecting the port when using an E61 group head for espresso.
Type-C Charging
Katze uses a Type-C charger, enabling faster charging and compatibility with power banks. Another key feature of Katze is the ability to charge while in use—something that most coffee scales on the market cannot offer. Once fully charged, Katze can operate for up to 20 hours of continuous use and requires only 2 hours to fully recharge.
Easly Trouble-Shooting
Katze, as our brand’s first product, is easy to use—even when it comes to troubleshooting. All you need to do is replace your container or cup on the scale, and Katze will automatically detect it and restart the measuring process. This design is particularly user-friendly for commercial settings where workloads are intense. It also addresses any display or calculation malfunctions; simply replacing your cup allows you to restart the mode in just a split second.
