哈喽老板,你说这个机器有两个锅炉是不是指大的锅炉套着小的在里面?这个机器是heat extranger 而不是 double boiler哦,说两个锅炉我觉得有些误导。 引用一个帖子的解释: What the X does is pretty revolutionary. On espresso machines, even double boilers, the boiler temperature is controlled. But the shot's temperature is mostly determined by the group's temperature, not the boiler's. In the Mara, the steam boiler cycles up and down to keep the group at the target temperature. In E61 machines, the group is heated via a thermosyphon that circulates boiler water through the group. The Mara measures the water flowing out of the group, back to the boiler, and cycles the boiler to keep it steady. The reason this takes high build quality is because the boiler is cycling up to pressures much higher than is usual in steam boilers. At warm up, the boiler pressure can get up to 2.75 bar. The result is that with no contortions and no flushing, the temperature is about as accurate as the larger and more expensive double boiler E61s (the same control system on a DB E61 would probably take that up to the saturated group big leagues in temperature stability). www.home-barista.com/reviews/lelit-marax-review-t63863.html