Description
Extraction You Can Actually Measure
Every batch of filter coffee or espresso tells a different story in the cup, and without a coffee TDS refractometer, that story stays a guess. The DiFluid R2 turns TDS and extraction yield into hard numbers, so your dial-in is repeatable — batch after batch, barista after barista.
Built Around Stability, Not Just Speed
Most refractometers drift as the sample cools or heats against ambient temperature. The R2 was rebuilt around this exact failure point — a new sample dish, deeper temperature compensation, and a sealed body that survives real café counters and home kitchen spills alike.
Built For The Cup, Not The Lab Bench
- ±0.02% accuracy for TDS readings you can trust and repeat
- Aluminum sample dish reaches thermal stability far faster than standard dishes
- IP67 water-resistant housing survives spills, steam, and daily handling
- Microcalibration layer compensates for temperature swings automatically
- Full-color display shows more testing data at a glance
Engineered Upgrades Over Standard Refractometers
±0.02% Accuracy
Delivers highly reliable TDS measurements for consistent extraction tracking across brew methods.
Aluminum Sample Dish
675% faster thermal conductivity than conventional dishes, reducing wait time and drift for ultra-stable readings.
IP67 Water Resistance
Sealed body built to withstand splashes, steam, and the daily wear of a working café counter.
Advanced Temperature Compensation
A unique microcalibration layer corrects readings automatically as sample temperature shifts.
Color Display
View TDS, extraction yield, and testing data clearly, even under bright café lighting.
The R2 In Real Use
Home Bar Or Café Counter
For home brewers refining pour-over ratios, the R2 confirms whether a recipe is under- or over-extracted without expensive trial batches. For café QC teams, it standardises extraction across baristas and shifts, catching inconsistency before it reaches the customer. Roasters and cuppers use it to benchmark extraction across origins and roast profiles.
What’s Included
- DiFluid R2 Extract Refractometer
- Coffee spoon
- Protective pouch
- USB-C charging cable
- Type: Coffee TDS refractometer
- Accuracy: ±0.02%
- Sample dish: Aluminum, 675% faster thermal conductivity
- Water resistance: IP67
- Temperature compensation: Microcalibration layer
- Display: Full-color
- Charging: USB-C
Frequently Asked Questions
What does this coffee TDS refractometer actually measure?
It measures Total Dissolved Solids in a brewed coffee sample, which is then used to calculate extraction yield alongside your brew ratio.
How often does it need calibration?
The R2’s microcalibration layer compensates for temperature automatically, reducing the need for frequent manual recalibration during normal use.
Is it suitable for espresso as well as filter coffee?
Yes. TDS measurement works across brew methods — espresso, filter, and cold brew all produce a soluble sample the R2 can read.
Can it handle daily use on a busy café counter?
Yes. The IP67 water-resistant body is built to withstand spills, steam, and repeated daily handling in working café environments.
What’s included when I order it?
Every unit ships with the R2 refractometer, a coffee spoon, a protective pouch, and a USB-C charging cable.
Built For Anyone Who Measures The Cup
The DiFluid R2 suits home brewers refining their recipe, café teams standardising quality across shifts, and roasters benchmarking extraction across profiles. If consistency matters more than guesswork, this is the tool that closes that gap.
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