How long do I need to roast the coffee beans after I buy them?

Coffee bean roasting time

Coffee beans are an important raw material for making coffee, and roasting is the process of converting raw beans into edible coffee beans. Different degrees of roasting will give coffee different flavors and tastes. So, how long does it take from buying it to completing the roasting? Let's discuss it in detail below.

Buy Green Beans

Before we start discussing roasting time, we first need to buy green beans that suit our taste and needs. It is very important to choose green beans of good quality, high freshness and good storage. Generally speaking, you can find high-quality green beans of various varieties and origins in specialty coffee shops or online.

Purification and classification

When you bring home the freshly purchased raw organisms, you have to clean them. First, check if there are any impurities or residues attached to the surface. Then use a sieve to separate them into groups of similar size and neat appearance. The purpose of this is to ensure uniformity and consistency during the baking process.

Storing Green Beans

After purification and sorting, store the green beans in a dry, cool, ventilated place away from direct sunlight. It is recommended to use sealed containers or special coffee bags to store green beans to prevent the adverse effects of oxygen, humidity and odor. At the same time, be careful to avoid contact with other items (such as spices) to avoid transferring flavors to each other.

Preheat

Before you start baking, you need to preheat your baking equipment. This process can improve the temperature stability of the equipment and ensure better control of temperature changes. Preheating time may vary depending on different types of equipment and personal preference.

Adjusting parameters

Each type of coffee bean has its own specific ideal parameter range, which needs to be adjusted according to the specific situation before the formal roasting begins. For example, choosing the right time, temperature and air speed to achieve the desired taste and flavor.

Start baking

Once the preheating and parameter adjustment are completed, the formal roasting process can begin. Roasting time varies depending on the type of coffee beans, origin, and personal preference. Generally speaking, light roasting takes a shorter time (about 8-10 minutes), medium roasting takes a little longer (about 10-12 minutes), and dark roasting takes a longer time (about 12-15 minutes).

Cooling and storage

When the coffee beans have reached the desired degree, it is very important to remove them from the equipment and cool them quickly. This prevents continued heating that will cause over-roasting and helps stabilize the flavor and taste. After cooling, the coffee beans are placed in a well-ventilated place away from direct sunlight to rest. This process is called "aging" and usually lasts from a few hours to a few days.

Taste and adjust

After the aging period is over, you can start tasting the coffee you made yourself! Taste to evaluate whether the taste, flavor, and aroma meet your expectations. If adjustments are needed, you can make fine adjustments according to your preferences, such as increasing or decreasing the roasting time, changing the temperature, etc.

Summarize

From buying green beans to completing roasting, the whole process requires a certain amount of time and patience. Each stage has its importance and special requirements and needs to be treated carefully. Only through careful processing and reasonable control can a coffee with a rich taste and unique flavor be produced.