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What is the difference between pasteurization and sterilization?

Pasteurization uses lower temperatures, usually below 100 °C (212 °F), and does not destroy all pathogenic microorganisms or microbial spores. Sterilization, on the other hand, uses higher temperatures and destroys all microorganisms and spores. The shelf life of a pasteurized product is usually shorter than the shelf life of a sterilized product.