Xcalibur is OptiServe's optical belt sorter for potato products, vegetables and fruit. The system assesses every object on colour, shape and length. This lets it separate real defects from natural product variation. With patented Intelligent Puffing, the machine ejects only the defective object, with minimal impact on good product. When sorting French fries, Xcalibur achieves over 95% accuracy on the accept stream, at a 20% defect level in the infeed. The result is fewer false rejects, higher yield and lower compressed air consumption.