ColorFlex EZ Coffee


ColorFlex EZ Coffee Spectrophotometer

The easy-to-use ColorFlex EZ Coffee is specifically designed to accurately measure the color of ground roast coffee, including freeze-dried granules and instant coffee powders. This accuracy is achieved by using 45º/0º optical geometry, the only measurement technology proven to measure color the way the human eye sees it.

Easy-to-use. Compact. And Increased Performance. ColorFlex EZ Coffee Spectrophotometer gives you unsurpassed confidence and trust in your outcomes.

The easy-to-use ColorFlex EZ Coffee is specifically built to meet and exceed your needs in measuring the color of roasted coffee grounds. It makes it easy to define the degree of roasting. Coffee color scales provided in firmware include: HunterLab Coffee Color Index (HCCI), SCAA Number & SCAA Roast Classification.

The ColorFlex EZ Coffee provides the measurement data needed to ensure consistent batch-to-batch production quality. Coffee color scales provided in firmware include: HunterLab Coffee Color Index (HCCI), SCAA Number & SCAA Roast Classification. In addition to its specialized coffee measuring ability, the ColorFlex EZ Coffee can also measure the reflected color of a wide range of non-coffee samples – liquids, semi-solids, powders, and solids using standard Hunter L,a,b color and CIE L*a*b* colorimetric and spectral data indices. Every ColorFlex EZ Coffee instrument is ready to immediately start measuring coffee color values, and includes: ColorFlex EZ Coffee instrument, Complete set of calibration & diagnostic tiles, Coffee tile for performance qualification, 1 sleeve of plastic coffee sample dishes and backed up by the finest customer support in the industry.

Product Specifications


Measurement Principle: Port up or Port forward dual-beam spectrophotometer

Geometry: Directional annular 45° illumination / 0° viewing

Spectrophotometer: Sealed optics; 256-element diode array and a high resolution concave holographic grating

Port Diameter/View Diameter: 31.8 mm (1.25 in) illuminated/ 25.4 mm (1 in) measured

Specular Component: Excluded

Spectral Range: 400 nm – 700 nm

Spectral Resolution: < 3 nm

Effective Bandwidth: 10 nm equivalent triangular

Reporting Interval: 10 nm

Photometric Range: 0 to 150 %

Light Source: Pulsed Xenon Lamp

Flashes per Measurement: 1 flash

Lamp Life: > 1 million flashes

Measurement Time: < 1 second from button push to measurement 2 seconds from button push to data display

Minimum Interval Between Measurements: 3 seconds

Standards Conformance: CIE 15:2004, ISO 7724/1, ASTM E1164, DIN 5033, Teil 7 and JIS Z 8722 Condition C

Standards Traceability: Instrument standard assignment in accordance with National Institute of Standards and Technology (NIST) following practices described in CIE Publication 44 and ASTM E259


Inter-Instrument Agreement:

  • ∆E*< 0.15 CIE L*a*b* (Avg) on BCRA II Tile Set
  • ∆E*< 0.25 CIE L*a*b* (Max) on BCRA II Tile Set

Colorimetric Repeatability: ∆E*< 0.05 CIE L*a*b* on white tile (20 Readings)


Data Views: Coffee Roast, Color Data, Color Difference Data, Tristimulus Color Plot, Spectral Data, Spectral Difference Data, Spectral Plot, Spectral Difference Plot

USB Flash Drive Features: Backup of Setups and Data, Setup Transfer to Multiple Units, Data Export to Excel

Other Features: Pass/Fail, Average Multiple Readings, Search for Closest Standard

Illuminants: A, C, D50, D55, D65, D75, F2, F7, F11

Observers: 2° and 10°

Color Scales: CIE L*a*b*, Hunter Lab, CIE L*C*h, CIE Yxy, CIE XYZ

Color Difference Scales: ∆L*a*b*, ∆Lab, ∆L*C*H, ∆L*C*h, ∆Yxy, ∆XYZ

Color Difference Indices: ∆E*, ∆E, ∆C*, ∆C and ∆Ecmc

Indices and Metrics: E313 Whiteness and Tint (C/2° or D65/10°), E313 Yellowness (C/2° or D65/10°), D1925 Yellowness (C/2°), Y Brightness, Z%, 457 nm Brightness, Opacity, Color Strength (Average and Single Wavelength), Gray Change, Gray Stain, Metamerism Index, Shade Number

Ground Coffee Color Model Only: Tomato Color Scores: HCCI (HunterLab Coffee Color Index values), SCAA Number, SCAA Roast Classification, colorimetric and spectral data


Languages: Chinese, English, French, German, Italian, Japanese, Spanish



  • Height: 16 cm (6.3 in.)
  • Width: 13 cm (5.1 in.)
  • Depth: 36 cm (14.2 in.)
  • Weight: 4.5 kg (9.9 lbs)

Display: 7.1 cm x 5.4 cm (2.8 in. x 2.1 in.) backlit color LCD

Interface: 3 USB 2.0 ports

Power: 100 to 240 VAC 47 to 63 Hz

Operating Environment: 10° to 40°C (50° to 104° F), 10 % to 90 % RH, noncondensing

Storage Environment: -20° to 65°C (-5° to 150° F), 10 % to 90 % RH, noncondensing

Standard Accessories:

  • Calibrated instrument white tile
  • Certificate of traceability
  • Black glass
  • Green diagnostic tile
  • Universal AC adaptor
  • Computer interface cable
  • USB flash drive
  • ColorFlex EZ User guide

Measures the reflected color of roasted coffee grounds, including freeze-dried, as well as instant powders

Product-standard storage with Pass/Fail tolerances

Displays Color Data, Color Plot, Spectral Data and Spectral Plots

45°/0° measurement geometry

Requires very little bench space

Can be connected to a printer or a PC

Compatible with PC based EasyMatch QC quality control software




Footswitch Assembly


The footswitch is used to initiate sample measurement without the use of hands.

Hard-Sided Carrying Case


Sample Cup Opaque Cover

Provides a light trap to exclude the interference of external light on the sample cup.

Ring and Disk Set


For use in the glass sample cup for sample presentation of liquids, powders, granules and pellets.

Glass Sample Cup


2.5 inch (64mm)

Optically clear glass cup for sample presentation of liquids, powders, granules and pellets.

Port Insert for Sample Cup


64 mm (2.5 in) Designed to hold and position the glass sample cup perfectly to accurately measure powders, granules, pellets, paste and liquids.


32 mm (1.25 in) Port Insert


25 mm (1 in) Port Insert


19 mm (0.75 in) Port Insert


13 mm (0.50 in) Port Insert

USB Printer


USB printer allows hard copy measurements to be printed. Requires a standard USB cable, sold separately. Uses Thermal Printer paper, sold separately.

L02-1014-440 Thermal Printer Paper (5 rolls per package)

Thermal printer paper for use with A13-1014-259 USB Printer.

USB Barcode Reader


Barcode Scanner scans product IDs directly into ColorFlex EZ. Automatically detected at USB port.

USB Flexible Keyboard


88 character keyboard allows user to enter IDs directly into ColorFlex EZ.


Booking Demo