Prism

Accessories

The bench kit

The tray, UV rig and light box that Prism and Coffee Spectra are calibrated against. Repeatable photos make results you can compare from one day to the next. Have a 3D printer? The UV rig is also sold as STL files.

Green coffee on the screen-size tray
Screen size: the tray’s four magenta dots set the scale.
Green coffee under 365 nm UV
UV: a sample under 365 nm light.