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Name: Ashley Status: student Grade: 9-12 Location: CA Country: USA Date: Winter 2011-2012

Why does roasting reduce the caffeine levels in coffee? What is the chemistry?

The Merck Index indicates that it sublimes readily at 160 – 165 C. under 1mm. air pressure. I do not know the roasting temperature is, but those conditions are fairly mild.

Vince Calder

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