NIR spectroscopy Archives - Felix Instruments

What’s the Minimum Sample Size Needed for Reliable NIR Readings?

What’s the Minimum Sample Size Needed for Reliable NIR Readings

Reliable NIR readings start with a simple question: how many samples are enough? The honest answer is that there is no universal minimum that works for every crop, every lot, and every decision. A small, uniform lot may need fewer readings than a mixed lot coming from different orchards, harvest dates, sizes, or maturity stages.… Continue reading…

How Often Should I Recalibrate My F-750 or F-751?

F-751 Ease of Use

If you rely on an F-750 or F-751 Quality Meter for harvest timing, intake checks, ripeness management, or quality control, F-750 recalibration should be treated as part of your measurement routine, not as an afterthought. These Felix Instruments meters are designed for fast, non-destructive produce quality assessment, but like any NIR-based instrument, the quality of… Continue reading…

Myth: You Can Tell Ripeness by Color Alone

Myth You Can Tell Ripeness by Color Alone

In produce operations, the idea that you can determine fruit ripeness by color alone is persistent. It sounds practical. Walk a field or a packing line, look for the right shade, and make a decision. But when fruit ripeness testing becomes critical to quality control, color quickly shows its limits. If you rely on visual… Continue reading…

Felix Instruments vs Sunforest vs Rubens Technologies: Which NIR Meter Rules Postharvest Dry Matter Testing?

Felix Instruments vs Sunforest vs Reubens Technologies Which NIR Meter Rules Postharvest Dry Matter Testing

Dry matter testing is a cornerstone of postharvest quality management. Accurate dry matter measurement helps growers and packers make confident decisions on harvest timing, fruit handling, and market destination. With postharvest dry matter testing at the heart of many supply chain decisions, choosing the right near-infrared (NIR) tool can directly impact efficiency and profitability. In… Continue reading…

How to Evaluate Data Accuracy in NIR Meters

NIR meter data accuracy is the first thing experienced users look at when deciding whether a handheld instrument is useful or just another gadget. Near infrared spectroscopy is not new, but applying it reliably in the field is still challenging. Differences in optics, calibration models, sampling methods, and validation practices can easily lead to inconsistent… Continue reading…

F-751 Series vs Sunforest: Predictive Power vs Processing Convenience

When teams evaluate handheld NIR tools for fruit maturity assessment, two priorities tend to rise above the rest: predictive power and processing convenience. The Felix Instruments F-751 series focuses on deep, crop-specific predictive models designed to deliver stable internal-quality estimates. Sunforest’s H-100 series emphasizes multi-fruit versatility and general convenience across orchard and supply-chain tasks. Both… Continue reading…