Can AI smell whether the milk has turned ?

An everyday human verdict in a single sniff. AI doesn't have a nose; the sensors that exist still can't replicate the gut-level 'no'.

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AI systems are being developed to detect and identify various odors, including those related to spoilage, using electronic noses that mimic the human sense of smell. These devices can analyze the chemical composition of the air and detect changes in the scent of milk as it spoils. However, the complexity of detecting subtle changes in smell, such as those that occur when milk turns, is a challenging task that requires advanced sensors and machine learning algorithms. Current research in this area is ongoing, with some studies demonstrating promising results in detecting spoilage using AI-powered electronic noses.

— Enriched May 9, 2026 · Source: IEEE — https://ieeexplore.ieee.org

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AI systems currently lack the ability to directly detect smells, including determining if milk has turned. While there are electronic nose devices that can detect certain odors, these devices are not yet integrated with AI in a way that allows for seamless detection of spoiled milk. The current state of the art in smell detection is focused on specific applications such as environmental monitoring or medical diagnosis, but not on everyday tasks like checking milk freshness. Researchers are exploring the use of machine learning with sensor data to detect spoilage, but this is still an emerging area of research.

— Status checked on May 10, 2026.