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Insort Sherlock Separator Whole Potato Sorter

Chemical Imaging Technology (CIT®) Detects Sugar Ends - Improving Quality

This highly innovative, patented technology reliably detects defects that are invisible to the human eye. CIT analyzes the chemical differences between good potatoes and those with sugar ends and glassy ends, to identify potatoes suitable for processing and those that should be ejected.

Detect and Remove Foreign Materials With Superior Confidence

The Sherlock Separator accurately profiles good potatoes using CIT’s full spectral analysis capabilities. This makes it possible to precisely detect and eject a broad range of foreign material (FM).  Anything that is chemically different to good potato material will be correctly identified as FM – including FM materials with similar color, shape, texture or density as good product.

Manage Peel Control Automatically, Maximizing Yield

The Separator peel scanning function monitors potatoes exiting the peeler and enables exact, dynamic control of the steam peeling process.   Process efficiency is increased and yield is maximized, preventing excess potato flesh to be removed along with the skin.  The system allows removal of potatoes with excess peel, based on a selectable threshold value

Three Sort Streams

Sherlock Separator autmatically manages three sort streams: one for good potatoes, a second one for defective potatoes or potatoes with excess peel coverage, and a third sort streams for FM and trash.




  • Sugar end (translucent ends, jelly ends and glassy ends) detection
  • Detection of other potato-defects such as green and  rot
  • Highly accurate foreign material detection and rejection
  • Detection of peel coverage and rejection at a selectablethreshold value
  • Dynamic control of the steam peeler to increase yield
  • Statistical ejections data
  • Length & Size Statistics


Typical Application

Whole potato sorting after peeling.

Sorting Excellence

Chemical Imaging Technology makes it possible to identify accurately and reliably specific defects and FM associated with potato processing.


Using a Sherlock Separator to remove sugar end potatoes and control the peeling process, a leading potato processor increased their yield and improved product quality, resulting in a project ROI of less than a year.


840mm 27 metric tons (60,0000lbs)/hour at an average potato weight of 220g(8oz)

1200mm 38 metric tons(85,000lbs)/hour at an average potato weight of 220g(8oz)
Key Technology | 150 Avery Street, Walla Walla, WA 99362 USA