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How Calories Are Determined In Foods
Old 12-16-2007, 10:12 AM   #1
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Did you ever wonder how that heavy eggplant got tagged with so many calories while that light and fluffy pastry came in weighing more than Marley's chain? The process for determining how many calories are in a particular food is rather primitive and can even be performed by using a homemade device.

In the modern day world, Calories are generally measured by using a sealed device called a calorimeter which locks in the heat and measures it based on the chemical reaction of the ignited food. A small vacuum of water rests above the food chamber. Once the food has been ignited and burns out, the temperature of the water is measured which thus determines the calorie content of the food.

Basically, a Calorie is the amount of energy (heat) required to increase the temperature in water 1 gram. The calorie content of a specific food allows an individual to determine how much energy they are consuming.

While the scientific name for Calories is kilocalories, 'calories' is a simplified term embracing simplified math. A kilocalorie contains 1,000 calories, so basically if a food contains 50 calories, in actuality it accurately contains 50,000 calories - which suddenly makes that light and fluffy pastry weighing in at 450,000 calories look pretty unappetizing.

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Old 12-16-2007, 11:08 AM   #2
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Awesome post! I never knew how they measured calories.
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Old 12-16-2007, 11:22 AM   #3
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LOL,, yeah me too,, I sit up at night thinking of this stuff, write it down, search for the answers..

And I actualy enjoy doing this!!!
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Old 12-16-2007, 03:56 PM   #4
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The machine is called a bomb calorimeter.
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Old 12-17-2007, 02:06 AM   #5
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I did this is science class many years ago. I think it was peanuts we were burning.
 
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Old 12-17-2007, 07:25 PM   #6
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Bombs are fun to mess with. I have access to a bomb C. at a lab and I mess around with it every once in a while. I'm a big nerd and I love it.

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