Image: Bühler Group
Bühler has launched its most advanced optical sorting solution to date, the SORTEX AI700, in London. Leveraging deep learning and artificial intelligence (AI), the new machine sets a new benchmark in impurity detection, with its first application focused on removing gluten-containing grains—such as barley, wheat, and rye—from oats. This development plays a vital role in safeguarding the integrity of gluten-free food production.
The SORTEX AI700 represents a major technological leap, moving beyond traditional machine learning systems. Previous models, such as those in the SORTEX SpectraVision range, relied on algorithmic refinement guided by engineer input. In contrast, the AI700 employs Convolutional Neural Networks (CNNs) trained on millions of labelled images. This allows it to differentiate materials with unmatched accuracy by analyzing color, shape, and texture.
“This is my most exciting project yet,” says Melvyn Penna, Product Manager for the SORTEX AI700 and a key leader in Bühler’s optical sorting advancements. “We’ve moved from engineer-driven adjustments to systems that learn and adapt through deep learning. This breakthrough enables unparalleled accuracy in identifying both acceptable and rejectable product.”
For food processors, the commercial advantages are substantial. Enhanced defect detection translates into higher product quality and increased yields. “We’ve seen a significant improvement in removing unwanted grains while reducing false rejects,” Penna explains. “This not only reduces waste but also boosts profitability. Real-world analyses show that even a 5–10% increase in reject concentration accuracy can deliver revenue gains worth hundreds of thousands of dollars annually.”
The SORTEX AI700 arrives at a critical time for the food industry. Rising raw material costs, more frequent crop defects due to climate change, stricter regulatory standards, and growing consumer expectations have amplified the demand for precision in food processing. Bühler’s AI-driven technology offers a timely and powerful solution to these emerging challenges.
The machine's first application addresses a pressing issue in allergen control. While oats are naturally gluten-free, they are often contaminated with gluten-containing grains during harvesting and processing. Traditional sorters meet basic standards but struggle with precise gluten removal. “With the AI700, we've achieved an unprecedented level of gluten grain removal, ensuring safer, high-integrity gluten-free oat products,” Penna notes.
While the initial launch is exclusively focused on oats, Bühler plans to expand the AI700’s capabilities to a broader range of commodities in the near future. The release of this innovative sorter underscores Bühler’s long-standing commitment to food safety, innovation, and sustainable production efficiency.
The SORTEX AI700 marks a transformative moment in food sorting technology—offering processors new tools to improve quality, reduce waste, and meet the highest safety standards through the power of artificial intelligence.
