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The first commercial application of microwave energy in food processing was for drying of:

  • A.potato chips
  • B.carrot
  • C.oyster mushrooms
  • D.turmeric

Answer: A

The first commercial use of microwave energy in food processing was in drying potato chips: microwave energy was used for finish drying of potato chips. This is the key's answer.

Carrot, oyster mushroom and turmeric are not the product for which microwave drying was first used commercially.

Microwaves heat the moisture inside the food directly, so they are most useful for the last stage of drying, when conventional hot air dries slowly. Potato chips were the first commercial case.

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