pasteurisation

/ˌpæstʃərəˈzeɪʃən/
noun
  1. The process of heating a liquid, especially milk or juice, to a specific temperature for a set time to kill harmful bacteria without changing the taste or quality.
    • Many countries require pasteurisation for all commercially sold dairy products.
    • The invention of pasteurisation greatly reduced the spread of diseases like tuberculosis.
    • Pasteurisation makes milk safe to drink by killing dangerous germs.