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Home Roasting Coffee in an Electric Oven
by Michael Allen Smith
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Monitoring the Roast
About 3 minutes into the roast you will want to start watching the beans at one minute intervals. My oven had a light, which I kept on
throughout the entire roasting process. As the roast progresses you will notice the beans going from green to yellow and eventually to
brown. Continue roasting and they will approach a very dark brown or black. Kenneth Davids, the author of Home Coffee Roasting: Romance & Revival ,
states that oven roasting isn't best for very light or very dark roasts. The electric oven will not roast the beans as evenly as other methods.
In addition to visually monitoring the roast, one should listen for the cracks. The first crack for me hit at the 8 minute mark and the second at 11 minutes.
You don't need to take it to a 2nd crack, that is up to the individual tastes of the roaster. Below are some photos of the different stages of the
roast as taken through the oven window.
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Start
The pan with the green beans is placed into the oven.
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3 minutes
At 3 minutes the coffee beans turn from green into yellow.
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6 minutes
At 6 minutes the coffee becomes a light shade of brown.
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9 minutes
At 9 minutes the beans have roasted to a darker brown color.
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12 minutes
At 12 minutes the beans
are covered with a shiny oil. This particular batch of beans
is finished roasting at this time. You can roast shorter or
longer depending upon your personal taste and the type of
bean.
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| * Note that times will vary depending upon oven strength and type of bean |
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