Roasting technology of boutique coffee beans
According to the different heat sources used, coffee baking can be divided into gas baking accompany charcoal baking accompany infrared baking accompany. One of the most commonly used is gas baking, temperature control between 200--300 degrees Celsius, and adjust the temperature from time to time according to needs.
Most stoves use gas, the temperature is around 290 degrees, in the first 5 minutes, free water is evaporated. The residual moisture is then squeezed out of the beans (producing a crackling sound).
When coffee beans reach about 200 degrees, they turn dark brown and begin to produce oil, a process called pyrolysis. The decisions made by the coffee brewer during this time are crucial, because if the coffee brews too long, the beans will be destroyed.
Most commercial ovens use large machines. Generally more than two meters in diameter cylindrical container, the bottom has a heat source, the container has a stirring tool to keep stirring coffee beans, while the container containing beans is easy to rotate, the purpose is to make coffee beans evenly heated, coffee beans in the drum along the spiral groove rotation, when reaching the groove low, began to bake accompany. This expensive machine is only used when roasting large quantities of coffee beans.
Professional bakers may use a special toaster. It is generally bulged, rotates horizontally, has a fire at the bottom, and has an exhaust fan to drive away smoke.
- Prev
Coffee roasting stage shallow roasting accompany. Moderate baking. Deep baking
The baking of coffee beans can be divided into shallow baking according to the degree of baking. Moderate baking. There are three categories of deep baking. Generally speaking, the light baking color is lighter, the sour taste is strong, and it has a unique flavor. The deep baking color is darker, the deeper the sour taste is, and the more bitter it is, but the scorched smell of baking makes the aroma more intense. The only common term among coffee bakers is bottom, medium, and deep.
- Next
Equipment needed for roasting coffee beans
1. Baking room: dust, silver, smoke, etc. discharged from the baking company are easy to dirty the environment, so although the space is narrow, it is best to have a baking room, the ventilation of the baking room must be considered. two。 Dust collectors, in order to prevent the formation of public hazard problems, should at least be equipped with dust collectors such as dust separators. 3. Baking machine exhaust chimney: dust collector to the top chimney, preferably set high
Related
- Beginners will see the "Coffee pull flower" guide!
- What is the difference between ice blog purified milk and ordinary milk coffee?
- Why is the Philippines the largest producer of crops in Liberia?
- For coffee extraction, should the fine powder be retained?
- How does extracted espresso fill pressed powder? How much strength does it take to press the powder?
- How to make jasmine cold extract coffee? Is the jasmine + latte good?
- Will this little toy really make the coffee taste better? How does Lily Drip affect coffee extraction?
- Will the action of slapping the filter cup also affect coffee extraction?
- What's the difference between powder-to-water ratio and powder-to-liquid ratio?
- What is the Ethiopian local species? What does it have to do with Heirloom native species?