What is the difference between spoilage and contamination?

Spoilage refers to the physical or chemical changes that make a product unsuitable for consumption, usually caused by microorganisms or environmental factors. Contamination, on the other hand, refers to the presence of harmful substances or microorganisms in a product, which can pose health risks to consumers. In summary, spoilage renders a product unpalatable or deteriorated, while contamination makes it unsafe for consumption.