Question

what do you understand by pasteurisation ?
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Answer 1

Answer:

A technique in which an unfermented liquid, such as milk, or a partially fermented liquid.

Explanation:

• Such as beer, is heated at a certain temperature for a set period of time to kill germs that might cause disease, spoilage, or unwanted fermentation.
• Pasteurization is named after Louis Pasteur, a French scientist. Pasteur invented a technique in 1864 to kill bacteria and lower acidity in wine by heating it to 50–60 °C (122–140 °F) before ageing it.
• However, the procedure had been used to preserve wine in China from at least 1117 AD.
• Lazzaro Spallanzani, an Italian scientist, proved in 1768 that heating beef broth to boiling and promptly shutting the container preserved the soup from deteriorating.
• To preserve delicacies, French chef Nicolas Appert sealed them in glass jars and plunged them in boiling water in 1795. (canning).
• Peter Durand used a similar method to preserve meals in tin cans in 1810.