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How can the shelf life of food be so long?

 How can the shelf life of food be so long?

Introduction Hello. Today, we will explore the reasons why the shelf life of food can be extended.

While shopping, there are times when we are surprised by the manufacturing date of a product, often when it was made a long time ago. Even more surprising is when you check the expiry date and it's specified as two years from the manufacture date.

Most foods on our table, like soup or stew, spoil w.....