Newest Version of Blackmirror Duo Sensor Scale (2025)
Advanced Precision Weighing Sensor
DUO integrates a cutting-edge dual-arm load cell, a breakthrough in precision measurement for pour-over brewing. This dual-arm system significantly enhances the stability, accuracy, and responsiveness of the sensor, providing lightning-fast, real-time measurements with exceptional reliability. The result is an ultra-precise reading of your brew weight at every stage, ensuring the most accurate control over your coffee extraction process.
Fully Adjustable Dripper Mount
The innovative dripper mount on DUO is designed for total flexibility. It features a swivel mechanism that allows you to seamlessly stop your brew at the perfect moment, preventing any under-extraction. Additionally, the mount is height-adjustable, easily accommodating a wide range of drippers and carafes. This versatility ensures that DUO fits into any setup, from traditional V60s to more specialized brewers, allowing you to fine-tune your technique with ease.
Dual-Readout Digital Display
DUO’s dual-display system provides unparalleled clarity during the brewing process. The first readout displays the total weight of coffee and water combined, while the second shows the drawdown progress in real time. This dual-feedback approach ensures that you can track both the overall weight and the ongoing extraction with precision, giving you full control and the ability to adjust on the fly. Whether you're refining your pour rate or adjusting your timing, DUO provides immediate insights into your brew.
New Dimensions in Brewing: Input + Output
DUO takes the classic coffee-to-water ratio to the next level by incorporating a new metric: the completed drawdown. This addition allows you to base your recipe on the coffee that actually makes it into your cup, accounting for losses during the brewing process. By considering both the input (coffee and water weight) and the output (final brewed weight), DUO provides an incredibly detailed understanding of your extraction process, allowing you to perfect your brew by focusing on the coffee that ends up in your cup.
Coffee Science Meets Precision Brewing
DUO moves beyond traditional brewing tools by allowing you to measure the critical relationship between coffee grounds and the final brewed coffee. This focus on the finished brew—the coffee that reaches your cup—offers a scientific approach to recipe development. By adjusting the ratio between the grounds and the final volume of liquid, you can fine-tune your brew to achieve a specific flavor profile, whether you’re aiming for a bright, floral note or a rich, full-bodied cup. This ability to control the brew’s output based on the final drawdown brings a new level of consistency and precision to the art of pourover brewing.
Real-Time Flow Rate Feedback
DUO is equipped with a high-precision load cell that provides real-time flow rate feedback as you pour. The sensor's fast response time ensures that any adjustments you make to your pouring technique—such as changes in pour speed or pattern—are immediately reflected in the display. This allows you to adapt your pouring technique on the fly, fine-tuning the flow rate to match your desired brew profile, while also providing instant data on whether your extraction is on track.
Precision Control Over the Last Drop
With DUO’s innovative swiveling dripper ring, you can stop the flow of water with a simple flick of the wrist, providing ultimate control over the brewing process. This feature eliminates the risk of over-extraction or unwanted water saturation, allowing you to finish your brew exactly how you want it. Whether you’re seeking to cut off the flow early for a brighter, more dynamic cup or ensure full saturation for a deeper, more balanced brew, DUO empowers you to experiment and refine your technique without fear of weak or watery coffee.
