How to Roast Coffee Beans at Home

How to Roast Coffee Beans at Home

How to Roast Coffee Beans at Home

Generally speaking, brewed coffee is as flavorful as the grounds. Besides the type of water used, the grind size, type of bean, and freshness determine the taste of your cup of coffee. That tells you why some roasters don’t indicate the roasting date on their bags. They are aware that great coffee is a product of fresh coffee grounds, and they wouldn’t want to lose your sale.

However, you are not at the mercy of roasters. You can roast coffee beans at home for a refreshing aromatic brew. Here is the how-to plus various tips to ensure that you have the perfect cup that you deserve.

Must You Roast?

The brown or black coffee beans you use are initially red. Processing them brings about various chemical changes that alter the shade of the beans.

Firstly, coffee beans go through a procedure that removes the skin and pulp. Then they are dried to make green beans which are shipped to different destinations. However, some processing companies roast the beans before packaging.

Meanwhile, the packed coffee roasts will begin to lose their flavor through a process known as degassing. During the process, beans lose carbon dioxide, which helps to preserve coffee beans.

On the other hand, coffee roasts absorb oxygen which replaces the lost carbon dioxide. Oxidation ruins the beans and gives them a stale taste.

Nonetheless, degassing is important since it results in lesser crema and gets rid of excess CO2. That’s the reason why roasters allow for some level of degassing before shipping their coffee beans.

As long as they remain in their green state, beans will retain their flavor. However, unroasted beans are highly acidic and bitter to drink. Apart from reducing the acid levels, roasting also enhances the taste and aroma of your coffee.

Roasting Methods

Roasting coffee at home is easy as long as you have the necessary items. From the list below, you can choose one that will be convenient. The bottom line is to have an excellent brew from perfectly roasted beans.

· Roast in a hot air popcorn popper

· Roast in an oven

· Roast a roasting machine

· Roast using a stovetop popcorn popper

If you decide to roast using a popcorn machine, remember that not all popcorn poppers are suitable for the task. Also, you might need to replace the machine after several months of coffee roasting. After all, the machine is supposed to roast popcorns and not coffee beans.

Third, roasting renders the warranty void. Besides, you should only roast from a machine that heats from the sides. Otherwise, your coffee beans won’t roast evenly, while chaff can ignite and cause a fire. Lastly, be sure to clean your machine and never leave it unattended.

What You Need for the Coffee Beans Roasting Process

A well-ventilated area: There won’t be roasting without smoke. Please prepare.

Unroasted beans: You can purchase green coffee beans from the supermarket or directly from a local roaster if there is one around. You wouldn’t want your beans to roast unevenly. Therefore confirm that they have a uniform color and size. You can also ask for advice when choosing your beans. Roasting experts can give you invaluable tips about green coffee beans.

A roaster: You have several choices from the list provided in this article. Be sure to maintain the heat at around 370 to 540 degrees Fahrenheit.

Storage: You’ll need an airtight container to store extra coffee roasts. A mason jar can serve the purpose.

The Roasting Process

Generally speaking, roasting takes place through several stages. However, you’ll find the primary stages only to help you understand what is happening to your beans when you start roasting them. During each step, coffee beans undergo a transformation that changes the over eight hundred compounds present in green beans.

Yellow beans: Upon placing your green beans on fire, their color changes to yellow. They also emit a grassy odor.

Steam: Evaporation starts taking place, and your beans lose water in the form of steam.

First crack: It marks the beginning of real roasting. The beans puff up, and their sugars start to caramelize, resulting in popping sounds that signal the process of cracking. Second crack: This is the next main step in the roasting process. However, in between the first and the second crack, other minor changes occur. Besides an enhanced flavor, violent cracking and a deeper shade are other characteristics of the second crack. This stage is also known as Full City Plus.

Dark roast: Also known as French roast, coffee beans release a more pungent smoke as sugars continue to caramelize. Even so, roasting doesn’t tamper with the flavor of the beans. This stage marks the furthest you can ever go with roasting, beyond which the beans start to burn.

Burn: This is the last stage whereby the beans start burning and the smell changes from pungent to terrible. The beans also lose their flavor and aroma.

How to Remove Chaff

Subjecting coffee beans to heat makes them shed their outer skin. The fallen shells are known as chaff. You’ll want to remove the chaff, although a small amount of the shells won’t ruin the flavor of your coffee roasts.

You’ll need two colanders to remove the chaff. Immediately after roasting, put the beans into one of the colanders. Then transfer into the other colander. Repeat the process until you have minimal if not no chaff at all.

How to Roast Beans Using a Hot Air Popcorn Popper

Using a hot air popcorn maker is one of the easiest ways to roast your beans. Within five minutes, you will be done with the task. Additionally, the method also allows you to experiment with your coffee beans—make them light, dark, or any shade you like. Therefore, it is recommended for newbie coffee lovers.

You’ll Need

· A hot air popcorn maker

· Green coffee beans

· A bowl

· Baking Sheet

· Airtight container

· Thermometer (optional)

The Roasting procedure

· Preheat the popper for thirty seconds.

· Add about half a cup of your green beans.

· Monitor the roasting process to avoid burning your beans.

· Turn off the roaster once the beans have attained your desired level of roasting.

· Pour the coffee roasts on the baking sheet, spread, and allow them to cool.

· Leave the roasts for twelve hours to allow them to release CO2 (degas), then put them in an airtight container.

· Store in a dry place but away from direct sunlight.

How to Roast Coffee Beans Using an Oven

An initial inspection of the oven’s maximum temperature is advisable before settling for this method. You don’t want to roast up to the first crack and get stuck. You wanted the darkest roast, isn’t it? Opening the windows before starting also helps. There will be smoke to deal with.

You’ll Need

· Unroasted coffee beans

· An oven

· A metallic colander

· A cookie sheet or perforated oven tray

The Roasting Procedure

· Preheat the oven to about 400 to 500 degrees Fahrenheit

· Evenly spread the coffee beans on the cookie sheet. Make sure they don’t stack on top of each other for an even roasting experience.

· Place the beans in the oven and watch closely.

· Give time for roasting to take place while listening for the first crack. The point at which you’ll turn off the oven depends on the level of roasting you like. However, be extra careful after the first crack. The beans can easily burn because of rapid chemical changes that take place.

· If you prefer darker roasts, wait for the second crack, then allow the coffee beans to roast for 1 minute before turning off the oven.

· Transfer the coffee roasts to the colander and shake gently to cool them.

· Allow the beans to sit for 12 hours for them to degas (lose carbon dioxide), then store them in an airtight container.

How to Roast Coffee Beans Using a Roasting Machine.

The advantage of a roasting machine is that it is easy to use. Secondly, finding a roaster is easy, thanks to the internet. You can buy one from Amazon from the comfort of your home. Third, you’ll not need to stir. The machine produces hot air that keeps the beans in motion during roasting.

You’ll Need:

· Unroasted coffee beans

· Colander

· Wooden spoon

· Airtight container

The Roasting Procedure

· Before adding the beans into the roaster, be sure to read the instructions manual. You will find valuable information such as the amount you should put into the roaster.

· Turn on the machine and allow the coffee beans to roast to the desired color. Keep a close watch to avoid burning the beans.

· Turn off the machine, then cool the beans by continuously dumping them from one colander to the other. If you don’t have a colander, continuously stir your beans using a wooden spoon to cool them.

· Leave the coffee beans to sit for at least 12 hours for them to degas (lose carbon dioxide).

· Transfer your coffee roasts into an airtight container and store them in a dry place, away from direct sunlight.

How to Roast Coffee Beans in a Stovetop Popcorn Popper

The last method mimics the traditional way of making popcorns–you only needed popcorns, a pot, and a stove to roast your popcorns. The stovetop popcorn popper method is also a simple way to roast your beans.

You’ll Need:

· Unroasted beans

· A stovetop popcorn popper

· Outdoor gas or electric burner

· Baking sheet

· Airtight container

· A laser thermometer (optional)

The Roasting Procedure:

· Set up your burner, then preheat your popcorn popper to around 400 degrees Fahrenheit. If you don’t have a thermometer, set your timer and heat your stovetop popcorn maker for 4-5 minutes.

· Add the green coffee beans and continuously crank the popcorn maker to ensure even roasting.

· Once roasted to the desired color, turn off the burner, then pour the coffee roasts on the baking sheet.

· Let the breeze do the cooling while sending the aroma to your neighbors.

· Leave the beans to sit for 12 hours to allow for degassing, then put them in an airtight container.

· Store in a dry place but away from direct sunlight.

Final Words

Roasting your coffee beans at home is not only fun, but it also ensures you get the freshness needed for an excellent cup of hot piping coffee. Besides, you have the freedom to determine the level of roasting you like. Isn’t that enough reward for your hard labor?



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