Difluid R2 Extract Coffee TDS Refractometer

Measure Coffee Extraction With Confidence

The Difluid R2 Extract Refractometer is a precise digital tool for measuring coffee concentration via Total Dissolved Solids (TDS). Designed for baristas, roasters, and serious home brewers, it helps you quantify extraction, dial in recipes, and maintain consistent cup quality across every brew.

The R2 Extract uses optical refraction to analyze a small coffee sample and calculate its TDS percentage. With a measuring range of 0-30% TDS and a fast test time of around 4 seconds, it delivers quick, repeatable readings during busy service or detailed recipe development. Its compact 36 g body is easy to handle at the bar, in the roastery, or on the go.

The device connects to a dedicated smartphone app, where your readings are displayed clearly in real time. Through the app, you can log sessions, compare brews, and track changes in extraction over time. This makes it easier to standardize recipes, train staff, and troubleshoot issues like under- or over-extraction. The interface is straightforward: place a small sample on the prism, start the test, and review the results on your phone within seconds.

Why It's a Smart Choice

• Supports consistent flavor by giving clear, numeric TDS data for every brew.
• Saves time with rapid measurement and simple app-based readouts.
• Helps optimize recipes, staff training, and quality control across locations.

FAQ

Q: Who is this refractometer best suited for?
A: It is ideal for specialty cafés, roasteries, quality control labs, and home brewers who want measurable control over extraction and cup consistency.

Q: What does the TDS range of 0-30% cover?
A: This range comfortably covers standard coffee beverages, concentrates, and experimental brews, giving flexibility for a wide variety of recipes.

Q: Do I need the app to use the device?
A: The app is recommended because it displays readings clearly, stores data, and allows comparison over time, making it more practical for everyday workflow and quality tracking.

Q: How much coffee is needed for a test?
A: Only a small sample is required on the prism surface, making it suitable for repeated testing without excessive waste.