Roasted Coffee Beans

Although you might think the opposite, roasting coffee beans at home is a lot more easier than what it’s thought to be. You might not even need a roasting machine or home roaster in order to roast your beans at home; there are several methods that might be a lot more suitable for you. Let’s dive deeper into some of the ways that you can use to roast your coffee beans.

First Things First: What is Roasting

Coffee Roasting
“Saltspring Coffee Roasting Facility” by Kris Krug is licensed with CC BY-SA 2.0. To view a copy of this license, visit

Before we get to the roasting part, first you should know more about coffee’s journey from fields to our bellies.

Coffee, which is basically the fruits of the coffea plant, goes through a lot of stages to become the spectacular beverage we drink every morning. First, it goes through a pulping and drying process in which its pulp and skin are removed. What’s left is called coffee bean, or more technically: inner seed.

After all these processes are done, we roast the coffee in order to bring the one-of-a-kind flavors, aromas, aftertastes out of the raw coffee beans, which are basically unroasted coffee beans.

To sum up, you would be drinking tasteless and bitter coffee if it weren’t for the roasting process. We owe it one.

Roast Levels

Roasting coffee is a tricky business; different levels of roast means separate flavors and aromas. We have 3 main roast levels to explore; from light to all the way to the dark, it’s basically a Star Wars story.

Light Roast

Roasted Coffee Beans
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With around 180 and 200 C of temperature, light roast or cinnamon roast is the first level of roasting scale. We use light roast to keep the unique flavors of the coffee bean as low temperature doesn’t damage the flavors.

Light roast offers you a lighter body with a brighter acidity and aromas. It is mostly known for the ability to reach the unique and exotic characteristics of the coffee bean.

The structure of the coffee beans is still rigid and their surfaces are still dry due to the low temperature.

All in all, light roast is the best choice for those who love to experience the unique flavors of coffee beans.

Medium Roast

If you start to roast at 210-220 C, you will end up with a medium-roasted coffee. That means you’ll get a medium-bodied coffee with a mid-level acidity and well-balanced flavor profile. Yet, the coffee beans will start to lose some of their unique flavors and aromas unlike the light roast. Instead of them, you can taste the darker notes in the coffee: deep caramel sweetness, chocolatey tones, etc.

Fresh coffee beans, on the other hand, will have a slightly oiled but mostly dry surface.

It can be called a regular roast as well. Medium roasted coffees are more commonly preferred by customers because they are easier to drink due to their less acidic but well-balanced nature.

Dark Roast

Dark Roast
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Finally, dark roast or espresso roast is the roasting level starting from 240 C up until to 250. That’s where you need to be careful because if you hit or pass 250 C, your coffee beans will burn.

You can clearly distinguish this one from others due to its distinct dark color and oily surface. In addition, dark roast offers you a heavy-bodied and darker-flavored coffee that might not fit everyone. At this level, most of the unique characteristics of coffee beans fade away and caramel, chocolate, or even nut flavors show up.

To sum up, if you are into darker and smoky flavors like chocolate or caramel, you should definitely try and enjoy the rich flavor of dark roasted coffees.

TEMPERATURE180-200 C210-220 C240-250 C
FLAVORlighter body, brighter acidity, unique flavorsFull-bodied, mid-level acidity, unique flavors with a hint of caramelHeavy body, darker flavor
BEAN STRUCTUREDry and bright structureSlight oily but mostly dry structureOily and dark structure

You Need..

Raw Coffee Beans

As you’ve probably guessed, the first thing you need is raw (unroasted) coffee beans to roast. You can get them from your local coffee shop, specialty coffee stores, or online websites with a bit of research. Choosing suitable coffee beans for your own taste is the most crucial part of the coffee roasting process.


There are several methods of coffee roasting; from roasting machines to popcorn poppers, you can use a variety of tools to roast. In this article, we’ll give some unusual examples rather than the traditional home coffee roasters.


Once the roasting process is done, you have to store it somewhere safe and -preferably- air tight. You can save coffee beans up to one week from going bad with a proper storage that doesn’t allow air to go inside.

How to Roast Coffee Beans at Home

Popcorn Popper

Popcorn Popper
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This may be the strangest one in the list and probably you haven’t seen this one coming. Yes, you can roast your coffee beans in a popcorn popper and no, it isn’t that difficult.

If you have a practical popcorn popper with built-in stirring mechanisms and 5 to 10

minutes, you are ready to go. Your popcorn popper must have a stirring mechanism in it as that’s the one which makes your job easier and shorter while you’re roasting.

First, you need to add ½ cup of raw (or green, you name it.) beans into the popcorn pepper. After you put it down to a stovetop with a medium heat, you should stir constantly. When you hear the first and the second cracks, put them into a bowl, where you will keep stirring them to cool the beans down. We’re almost done. Now, you should keep them in a container without a cover for about 24 hours to let carbon dioxide outside. Once you’re done waiting, you can make a delicious coffee and tell your friends that you just roasted a coffee with a popcorn popper!

Roasting in Oven

Roasting in Oven
“Homemade muffins with chocolate crumbs in a baking tray in an oven” by Ivan Radic is licensed with CC BY 2.0. To view a copy of this license, visit

First, spread ½ cup of raw/green beans on a baking trey and put them on your oven that has been heated to 250 C. Check it every minute to hear the cracks and recognize the changes and stir. After you’ve heard the cracks, you can follow the latest steps above.

Roasting coffee at home in an oven might be one of the easiest ways to roast your coffee. All you have to do is stir and check continuously. Just like the popcorn pepper, you’ll get your roasted coffee beans after 7-10 minutes. Enjoy.

Pan Roasting

Pan Roasting
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Well, this might be the hardest among the other two, but it’s still easy. In just 10 minutes, this method will give its results and you’ll have delicious and unique flavored coffee beans.

First, just like the other way, you need to heat your pan to 250 C. Remember, if it gets hotter than 250 C, your coffee beans will burn and unique flavors of it will disappear. Add half a cup of raw beans to the pan and start stirring. You need to keep stirring throughout the roasting process in order to spread the heat. After that, you should observe the changes in the beans; sounds of cracks, color changes, etc.

Another thing you should know is that first crack means it’s lightly roasted; so, if you prefer your coffee like that, you should stop roasting. The most noticeable sign of medium roast is the color change to light brown. Dark roast, on the other hand, needs another crack, therefore, when you hear the sound of a second crack, remove them immediately.

Once you’re done, follow the latest steps in the other methods; put them into a bowl, let them wait for 24 hours and voila!

Roast Your Own Coffee at Home: 3 Different Methods of Coffee Roasting

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