Roasting green coffee beans takes skill, and passionate professionals on this line work are recognized as Master Roasters. This title is given by The Roasters Guild (a Specialty Coffee Association of America Trade Guild) to those individuals who finished their Master Roaster accreditation level. The Master Roaster accreditation is for experienced, highly skilled coffee roasters who are regarded as experts by their peers. This Master Roaster accreditation level is designed to be particularly complex and multifaceted, and requires substantial individual learning related to coffee, manufacturing, and business topics.
Basically, the bean that you get in pouches are roasted in this process:
1. First, green beans are introduced to a gas-heated, rotating drum wherein they are spun and heated (400 C).
2. After about five to seven minutes, the green beans begin to lose moisture, turning a warm yellow color and emitting an almost buttery aroma. The roaster uses all his senses to guide the developing beans, monitoring temperature, time, aroma, and color. He is also listening for a special sound.
3. At about the eighth minute, the “first pop” is heard. The bean expands to nearly twice its size, and the pop is the cracking sound of the moisture turning to steam inside the bean. The beans begin to darken to a light brown color.
4. The beans continue to roast, losing more moisture until they darken and become shiny with their own oils. After ten to fifteen minutes, the coffee pops again, concluding the roasting process.
5. The beans are stirred in a large cooling tray to ensure consistency and evenness as they return to room temperature.
Beans are then packed inside specially designed pouches that “de-gases” the coffee (see blog title: valve in coffee packaging), this is preserve freshness of the bean.
There are coffee shops, however, that have raised the idea of freshness to the next level. Bo’s Coffee, for example, purchased roasting machines and placed them inside their stores. Whether they employ master roaster or not, it sure wouldn’t hurt to try a fresh brewed coffee as they advertised it.
Toast or roast?
Tuesday, October 23, 2007
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