It reflects about 140 square feet of focused light onto the drum roaster. The external plate heats up to 1,200 degrees, which radiates heat to the inside of the oven.

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We had a 10-foot satellite dish just sitting in our backyard and we were trying to think of what to do with ourselves that summer. My brother is an inventor and builder and I have always wanted to go into coffee, so we put our minds to trying to build our own coffee roaster.

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