Judging the blockage of the smoke exhaust pipe of the coffee roaster and the method of checking and cleaning
For professional coffee roasting, tube blockage is always a headache. When the coffee beans are baked, they produce soot. This soot is not only exhaust gas, but also contains a lot of silver dandruff and dirt impurities of raw beans. As long as the coffee roaster machine keeps running, it is full of impurities and dander. The soot will be produced and discharged continuously, and the highly viscous soot will gradually adhere to the surface of the object to be contacted, and will proliferate and thicken, eventually causing blockage of the exhaust line. Blocking doesn’t have to wait until your tubing is completely blocked. As long as it accumulates to a certain thickness, it has greatly affected the baking quality of the coffee beans and the performance in the cup.
Blocking of coffee roaster machine can occur at any point, from the damper, fan blades, dust buckets, electrostatic machines, to any point in the exhaust path! Often you think that the clean place is all noticed, and blocking may still happen in unexpected places. Severe blockage will cause all the baking data to fail, and some of the tastes will not come out. The taste that should not be there is uninvited, making your daily coffee baking work becomes a nightmare.
How do we detect the occurrence of a blocking of coffee roaster machine ? When you find that one or more of the symptoms appear, blocking may have happened!
- 加热速度偏离正常，烘烤中段开始升温比平时快，尾段偏差较大。
- 味道甜甜的，但闻起来却像一层雾气。
- 缺乏干净的明亮度，往往是：口感甜而沉闷，或者舌头两侧酸味较强。
- 有些香气被磨碎了（干香）可以闻到但尝不到
- 带着咸味，情节变化从很小到很明显。使用浓缩咖啡杯测可以轻松检测咸味。
- 出现不洁气味或涩味。
What should we do with the coffee roaster machine if we find that there may be symptoms of tube blockage? Here are the cleaning steps you should take:
- 立即停止工作并关闭火焰，直至烘焙机完全冷却至室温。
- 拆下并取出所有排气管路径，逐步确认以下部件是否被堵塞：烘烤器本体（排气路径、风门、风扇叶片）、集尘桶（上部、中部、漏斗）、所有管道路径（特别是在转弯或口径变化）、静电机（进出风口、过滤器、板、风机）、室外烟囱管道。所有废气经过的地方都需要拆除进行检查。
- 皮屑的堵塞和增生，无论情节严重程度如何，都应彻底清除。
- 安装完毕后，执行回零烘烤测试程序，根据回零测试的结果记录新的烘烤数据。
- 设置烘烤计数器，归零并开始记录清洁后的烘烤炉数。
- 清洁操作时，可以使用不脱毛的毛巾，避免使用硬刷，安装时注意接头处橡皮筋的完整性。