How to Roast Coffee Beans

How to Roast Coffee Beans at Home: (3 Super Easy Methods)

  1. Basics of Roasting Coffee Beans
  2. Light Roast vs Dark Roast
  3. Three Simple Ways of Roasting Coffee Beans at Home
  4. Conclusion

The best way to enjoy coffee is to roast your own coffee beans at home. This will ensure that every cup of coffee is fresh and exactly to your flavor. Although you can go to the local coffee shop and find any type of coffee beans but it won’t have that flavor complexities like the home-roasted. So, instead of going all the time to shop, why not roast them at home which is both economical and time-saving.

Now you will be thinking that how to roast coffee beans at home? Well, we are here with 3 easy and basic ways which will guide you in the right direction to roast your own coffee beans. Before starting the process you should have supplies and sources of green coffee beans. Also, you should properly understand the roasting process from start to end because it has a great impact on the taste of your coffee. Without spending more time on the introduction, let’s begin the roasting process.

Basics of Roasting Coffee Beans

There are various methods of roasting coffee beans, whatever method you choose, you need to keep some characteristics of beans in mind while roasting them. Because only then you will be able to know when to stop the roasting process and the beans will be according to your taste and preferences.

Focus on the smell
Upon heating the green coffee beans, they will become yellowish and give off a grassy smell. When the beans start roasting, you will see smoke and they will smell like actual coffee.

The length of roast depends upon the color of beans
When you start roasting green beans, they will go through a whole range of colors. Simple is that the darker the beans are the better they are roasted. Let’s go through each and every color that you will see during roasting.

  • Light brown: You should avoid this color because it has a sour taste. The beans are not well roasted, the odor is medium and the sweetness is little.
  • Light-medium brown: People in the eastern United States mostly prefer this roast. The beans are well roasted, the odor is full and sweetness is medium.
  • Full medium brown: This roast is common in the western US. The body is full, the odor is strong and the sweetness is moderate.
  • Medium-dark brown: Also called as light French roast or Viennese roast. Such beans have very full body, solid odor, and strong sweetness. These beans are perfect to be used in French Press.
  • Dark brown: This roast is also known as espresso or French. The body is full, the odor is moderate and sweetness is full.
  • Very dark: Also called as Spanish or Dark French, while the body is weak, the odor is weak and sweetness is little. It is the last stage after that the beans will burn, hence stop the roasting process.

Crackling sound
When the beans begin to roast, the water they contain will begin to evaporate and you will hear a crackling sound. Actually there are two stages of crackling that are first and second. As the temperature rises and roasting occur, hence the two sounds result.

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Light Roast vs Dark Roast

Different people have different preferences of coffee so the beans should be also roasted accordingly. Most of the people do not know all the stages, anyway the most common domination that separate the different stages are light, medium, medium-dark and dark roast.

Light Roast

To get light roast the temperature should be 356 to 401 degrees Fahrenheit. Such a roast is also called cinnamon, half city, and light city. Irrespective of the name, they fall around the first crack. The surface of the bean is dry and they are dense and hard. Such a roast is for people who prefer high acidity. It is the safest roast at home because it requires less time and temperature.

Medium Roast

For it, you will need 410 to 428 degrees Fahrenheit. Although the surface of the bean is relatively dry, yet they are distinct from the green beans. It will appear around the middle to end of the first crack. This roast level is recommended for people who prefer medium acidity and a fuller body.

Medium-Dark Roast

Medium-dark roast occurs at 437 to 446 degrees Fahrenheit. When the beans advance to the second crack, you will see some patches of oil. At this point, the taste of the roast begins to feature, create a notion of spice and bulky body.

Dark Roast

French Roast, Italian Roast and Espresso Roast, all fall under the category of dark roast. Such beans are roasted around 464 degrees Fahrenheit, but you need to keep things below 482 degrees. Here is the tricky part because if you don’t use proper equipment, roasting can be dangerous. The beans have clearly oily surface, acidity is low and they need to pull out before the second crack. Anything beyond this point will lead to burn and fire zone, so you should be extra careful when going for a dark roast.

3 Simple Ways of Roasting Coffee Beans at Home

The three simple methods of roasting your own coffee beans are as follows.

How to Roast Coffee Beans in Oven?

Oven for Roasting Coffee Beans
As there is very little airflow in an oven, so it sometimes leads to uneven roasting. Though, the scarcity of airflow result in the richness of flavour if the oven is correctly used.

  1. Fist of all you need to preheat your oven to the temperature at which you wanna roast your beans.
  2. Ready your pan and for that you will need a baking sheet that has multiple tiny holes and a border to keep all the beans in a pan. You can get this pan from any store that deals in kitchen utensils.
  3. Now pour the beans onto the sheet in such a way that they lie in one layer and do not overlap. After the beans are spread, place the pan onto the oven.Roast the beans for 15 to 20 minutes in the oven. Stir the beans around at regular interval in order to help them develop an even roast.
  4. After the beans are roasted to your satisfaction, now its time to remove the beans from the oven. Pour them into metal utensils to cool them. Also, stir the beans around which along with cooling will help in removing husks.

How to Roast Coffee Beans in a Popcorn Popper?

Popcorn Popper for Roasting Coffee Beans
You can also roast your coffee beans on a stovetop and for that, you will need a popcorn popper. The best popper in this regard is a crank-style that you can easily get from a kitchen supply store or online. Although roasting on the stovetop gives you dark roast and full-body, however, the odor of the beans is reduced.

  1. First you need to place the popper on the stovetop. The temperature of the popper should be around 450 degrees Fahrenheit. Also, it will be better to use a thermometer to stay updated on the popper temperature.
  2. Add the beans and keep in mind that you can roast only 8 ounces at a time. After the addition of beans close the lid of a popper and start roasting. Constantly stir the beans to obtain an even roast.
  3. After 4 to 7 minutes you will hear a crackling sound which is the indication that your beans are roasting. You should also know that at this time the beans will produce smoke which is vigorous, so it will be better to open the window for letting the smoke out.
  4. Once the crackling begins, check the color of the beans and when they reach to the color of your taste, pour them in a metal utensil for cooling.

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How to Roast Coffee Beans in Air Roaster?

Air Roaster for Roasting Coffee Beans
Air roaster works in the same way as the popcorn popper that is hot air is blown over beans and thus they are roasted. Although these appliances are expensive but they are very efficient and result in the most even roast. Air roasters are also called flow bed roaster and they come with a glass container that lets you check the color of beans as they roast. In this way, you can roast the beans to your desired color in the most efficient way. In addition, the air roasters come with appliance instructions which will guide you in the right direction to roast your coffee beans to perfection.


Roasting coffee beans at home is an easy process and will be a new adventure for you. You can create a new and unique taste of coffee in your morning cup. More, you are not bound to only these three methods, you are free to experiment with new methods, but you should be extra careful so that you don’t harm yourself. Anyway, we would recommend that unless you fully understand the roasting process, do not try something new. On top of that, the three methods mentioned above will enable you to get any stage of coffee whether light or dark, hence you don’t need experimentation.

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