The $300 billion breakthrough that gave us frozen food

From frozen pizza to Eggo waffles, frozen food has taken over the grocery store.
But it wasn't always this popular. There was a time when Americans bought only a couple of pounds of frozen food per year.
Clarence Birdseye's breakthrough started with frozen peas and fish. But it has grown to an almost $300 billion industry.
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Following is a transcript of the video.Clancy Morgan: If you're like me, your freezer is packed full of frozen food that c