Ask Liz: Organic Milk vs. Regular Milk

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AP

Why does organic milk always seem to have a longer shelf life than regular milk? The International Dairy Foods Association says:

  • The pasteurization temperature is what determines the shelf life of a dairy product.
  • Milk needs to be pasteurized to destroy bacteria for safety reasons, and can be regularly pasteurized or ultra-pasteurized, which involves a higher heat treatment.
  • Ultra-pasteurization results in a longer shelf life and is commonly used in organic milks.
  • The length of the shelf life is only valid while the package is unopened.
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