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With narration like, "Another machine then purées the meat batter into a fine emulsion and vacuums out any air" and "long rolls of cellulose tubing are loaded into the stuffing machine," this is a classic. Get this: 300,000 hot dogs in one hour. Warning: Do not watch this while eating lunch—especially if your lunch involves hot dogs.

How Hot Dogs Are Made

Oddly enough, even after seeing the business end of hot-dog-making, I still get curiously hungry after seeing the mustard squeezed onto that dog at the end of this video.

Related: The BBC Goes Inside a Frozen-Pizza Factory in Ireland

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