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Introduction to Home Coffee Roasting

To enjoy fresh, home-roasted coffee beans and the wonderful aroma of coffee, nothing beats roasting your own coffee beans! Additionally, you'll discover many other flavors in coffee and identify the differences in origin, altitude, variety, processing method, and roasting techniques. This will help you understand coffee better.

So before starting home roasting, here are the essential items you need to prepare. But remember, there might be items not listed here that you may not be able to purchase. This is why you need all five senses to assist your roasting technique. Everything else can be purchased online. Let's get started!

1. Simple Roasting Machine

There are several options depending on your budget and desired machine features. Some people choose to use popcorn poppers or even pans, which are more economical options but don't allow you to control roasting variables or observe how the beans react to heat during roasting. When you decide to get serious about roasting, you can upgrade your equipment.

If you're looking for a more practical machine, you'll need a home roaster that allows you to control temperature, time, and other additional features.

Take the Behmor 1600Plus as an example - it's an affordable machine for most people that can roast one pound at a time. You can set parameters for specific beans or override factory settings, and it also has smoke exhaust functionality. Since this machine is designed for coffee rather than popcorn, it has a built-in automatic cooling system and a drum to ensure even roasting.

2. Green Coffee Beans

What you need for roasting are green beans, but it's important to know that green beans vary. When you start roasting at home, you'll notice different regions, varieties, production histories, processing methods, and even flavor descriptions - all of which affect roasting.

For example, coffee bean density is influenced by many factors, with the easiest to measure being growing altitude. Denser beans have better flavors, and because their high density affects how they absorb heat, using too low a temperature for roasting can result in baked flavors. However, using too high a temperature for soft beans (low density) will cause them to burn.

Some books and websites discuss this topic, and some home roasters also share different setting tutorials, so you can easily find roasting guides to follow.

3. Scale

A scale is indispensable for brewing, so if you don't have one, get one quickly. You can use it to measure the weight of green beans and roasted beans, letting you know how much coffee you've roasted and how much water weight the coffee beans lost during roasting.

4. Cooling Tray or Sieve

If your roaster doesn't have a cooling tray, you'll need one. When the beans are finished roasting, their core temperature remains extremely high, so it's crucial to lower the internal temperature as quickly as possible.

Some home roasters have cooling trays for the cooling process, but if you don't have these items, buy a tray or sieve. While it might not be the optimal tool, it's still acceptable and is one part of creating perfect coffee beans.

5. Coffee Bags/Airtight Containers

After completing the cooling process, you must allow the gases released by the beans to escape. There are different opinions on this: Sweet Maria's suggests 8-12 hours, while others say 24 hours or even longer.

The storage method also affects shelf life. Store your coffee beans properly - it's recommended to use bags with one-way valves to block light, moisture, heat, and air. Another good option is airtight containers that can be reused. Ensure the container is in good condition and can block light from reaching the beans, otherwise your coffee beans will quickly deteriorate.

6. Keep Roasting Records/Notes

Want your coffee to taste consistent every time? Or want to figure out why you're getting unpleasant flavors or defects and how to change it? You must keep roasting records. You can use the same beans, same machine, and same roasting parameters each time, but some parameters can only be controlled and replicated if you record them.

How to Roast Coffee Beans at Home?

1. Net Roasting

This is a home roasting method developed in Japan and is also the most commonly used method in Korea.

Steps:

1. Place green coffee beans in a net and heat it on a gas stove.
2. Continuously shake the net to ensure even roasting of the green coffee beans.
3. When the first crack occurs, silver skin will start flying around. At this time, you can gently blow with your mouth or lightly tap the net with a rice spoon.
4. When the second crack occurs, roast to your desired degree, then turn off the heat. Shake the net over the sink to clean off any remaining silver skin, then let it cool.

2. Oven Roasting

Steps:

1. Preheat the oven to 270°F.
2. Spread all coffee beans in a single layer on a baking sheet, ensuring each bean touches the pan surface.
3. Monitor the coffee color continuously and roast to your desired level. Total time should not exceed 15 minutes.
4. When the desired color is achieved, quickly remove and place in a net, shaking to remove silver skin and cool.

3. Mini Rice Cooker Roasting

The rice cooker mentioned here doesn't refer to multifunctional rice cookers on the market, but simple cookers that only cook rice.

1. Press the button to preheat.
2. When the rice cooker reaches a certain temperature, add the coffee beans.
3. Wear heat-resistant gloves and hold the lid and handle to shake.
4. After the first and second cracks, silver skin will start popping off and smoke will emerge.
5. Since the lid is transparent, you can directly observe the roasting situation inside. Stop roasting when the appropriate degree is reached.

Roasting Degrees

For your first home roasting, you might not understand the time corresponding to roasting degrees. Here's a small template for your reference - these aren't strict rules, so feel free to experiment and find what works for you!

Light Roast

Roast for about 7 minutes. When the green coffee beans start to shed their husks and expand to double their size, you're approaching light roast level. The surface of green coffee beans tends to be dry, with flavors emitting light acidity and grassy notes.

Medium Roast

After about 9-11 minutes, the coffee starts to emit sweet flavors with appropriate acidity mixed in. This is the most popular American roast degree, suitable for drip coffee.

Medium-Dark Roast

Roast for about 12-13 minutes. The coffee starts to develop sheen, emitting some spicy notes and rich, chocolate-like sweetness. Suitable for European-style French press coffee or espresso blends.

Dark Roast

After about 14-15 minutes, when smoke emerges, the green coffee beans will also exude oil, undergoing caramelization reactions and emitting smoky flavors.

Home roasting is an interesting experience that can transform your relationship with coffee and might even become your new business! So if you're interested in roasting, gather the items listed here, find data or recorded procedures from friends who have done it before for your first attempt, and experience roasting for yourself!

Fresh Roasted Coffee Bean Brand Recommendations

FrontStreet Coffee's single-origin fresh roasted coffee beans: Yirgacheffe coffee, Kenya AA coffee, Panama Geisha coffee, and others are fully guaranteed in brand and quality, suitable for brewing with various equipment. More importantly, they offer extremely high value for money - a half-pound (227g) package costs only about 80-90 RMB. Calculating at 15g per pour-over coffee, one package can make 15 cups of coffee, with each single-origin coffee costing only about 6 RMB. Compared to café prices that often charge dozens of RMB per cup, this offers exceptional value.

FrontStreet Coffee: A roastery in Guangzhou with a small shop but diverse bean varieties, where you can find both famous and lesser-known beans. They also provide online store services. https://shop104210103.taobao.com

Important Notice :

前街咖啡 FrontStreet Coffee has moved to new addredd:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473