Can AI smell whether the milk has turned ?

Can an AI-powered system sniff out whether milk has spoiled, bypassing the human nose? This question probes whether technology can replicate the subtle chemistry of spoilage detection that comes naturally to people.

Background

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 analyze the chemical composition of the air and detect changes in the scent of milk as it spoils. The complexity of detecting subtle changes in smell such as those that occur when milk turns is a challenging task requiring advanced sensors and machine learning algorithms. Research in this area is ongoing, with studies demonstrating promising results in detecting spoilage using AI-powered electronic noses (Enriched May 9, 2026, IEEE).

AI systems currently lack the ability to directly detect smells for everyday tasks like checking milk freshness. While electronic nose devices can detect certain odors, they are not yet seamlessly integrated with AI for general-purpose spoilage detection. Current smell detection focuses on specialized applications such as environmental monitoring or medical diagnosis rather than routine food checks. Investigations into machine learning with sensor data for spoilage detection remain an emerging research area (Status checked on May 10, 2026).