Can deeply roasted coffee beans be blended?

Baking process:

First 9 minutes:

Once coffee roasting begins, only 3 minutes later, the beans begin to emit a grassy aroma. In about 5 minutes, the beans will swell and the color will change from green to yellow and then golden yellow. At this point, the smell begins to change, and some resemble toasted wheat. After about 9 minutes, the coffee began to wrinkle and look like it had been destroyed.

The first pop-up sound:

Around 10 minutes later, the gas inside the beans swells, expanding in volume so that they appear to be twice their original size, and then ruptures. This cracking releases gases that sound somewhat similar to roasted popcorn.

The swelling smoothes out the surface and then the color of the beans starts to turn light brown. This is the lightest baking and is called cinnamon roast.

The second pop-up sound:

After a pop sound, the beans quickly condense gas and burst with a second pop sound.

After about 11 minutes, the color becomes darker brown, and at about 12 minutes the color and aroma of the coffee begin to change dramatically.

Deep Roasted Coffee Beans:

Coffee beans roasted for about 15 minutes now look very black. A little deeper, a little more, and we finally get to the deepest roast, the French roast. It is important to note that this has nothing to do with where the beans come from, but rather the roasting degree of the coffee beans. In Europe, this is sometimes referred to as Italian or espresso roast.

Regardless of the decision to stop roasting in the roaster at any stage, the coffee beans are poured into a cooled stirred bean container, which cools them rapidly to quickly stop it roasting.

A day or two after the coffee beans are roasted, they begin to evaporate out of the flavor. When this process is complete, the coffee will be at its best flavor and the freshly roasted beans will be packed into a preservative bag to prevent oxidation and spillage of flavor. Remember, it is important to note that fresh coffee is roasted, not when it is harvested. Roasted coffee has been exposed to the air, and the taste will begin to deteriorate very quickly. In fact, most of the flavor will be lost in just 7 to 10 days!

Roasting is part of creating great coffee, and understanding and blending coffee roasting skills is essential