Why Parmesan cheese has a distinct smell ? Parmesan cheese has a distinct, pungent smell primarily due to the presence of butyric acid, a volatile fatty acid produced during its long fermentation and aging process, which is often described as smelling similar to vomit. This compound is released when the cheese is heated, as in on hot pasta, making it more noticeable. Key factors contributing to the smell include: Aging Process: The long maturation of Parmesan (1-2 years) breaks down fats and pro

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