The DiFluid R2 Extract Refractometer is a high-precision digital coffee analysis tool designed to measure Total Dissolved Solids (TDS) in brewed coffee. By accurately measuring coffee concentration, it helps baristas, roasters, and coffee enthusiasts optimize extraction and achieve consistent flavor profiles.

Key features include:

• High accuracy and precision with a measurement range of 0-30% TDS, ±0.02% precision, and 0.01% resolution.
• An advanced CMOS sensor with micro-calibration technology for reliable, repeatable readings.
• Bluetooth connectivity with the DiFluid CoffeeOS app, enabling automatic extraction yield calculations, brew tracking, and recipe management.
• IP67 water resistance and USB-C rechargeable battery for convenient daily use in cafés and home brewing setups.

The R2 Extract helps users make data-driven brewing decisions, improving consistency, reducing waste, and unlocking the full flavor potential of every cup.

As part of the DiFluid ecosystem, the Microbalance Ti can be paired with the DiFluid R2 Extract Refractometer to automatically calculate extraction yield, helping users optimize coffee quality with data-driven precision.

In short with the Difluid R2 Refractometer you can:

• Adjust flavor profile of the finished product
  
• Improve coffee brewing techniques
  
• Calibrate coffee machine recipes
  
• Adjust coffee strength and concentration
  
• It provides intuitive instruction on the factors affecting strength and how to adjust it
  
• Helps with quality control for product consistency

Ideal for:

Coffee Roasters, Green Coffee Suppliers, Coffee enthousiasts, Coffee machine manufacturers, Coffee Academies, Specialty coffee shops & Coffee Laboratories.

CoffeeOS by DiFluid is a free, advanced software platform and operating system designed to connect, integrate, and manage smart coffee hardware like refractometers, scales, and particle analyzers. It expands on the older DiFluid Café app with deeper analytical tools, AI integration, and cross-device tracking.

JOIN THE COMMUNITY

CoffeeOS is an extremely ambitious project, planned for the far future. The framework is designed to allow an infinitely expanding number of external devices and Tools with new features. You using CoffeeOS is contributing to better coffee for everyone.

Key Features:

• Hardware Integration: Connects seamlessly with smart refractometers, color analyzers, grinders, and digital scales.
• Brew Management: Includes real-time brew controllers, recorders, and ratio calculators.
• Data & Analysis: Offers particle analysis, roast color tracking, and extraction curve monitoring.
• Community & Recipes: Allows you to save personalized recipes, research coffee metrics, and share insights.
  

AvailabilityiOS: Available to download on Apple devices via the App Store.