If the crema is very dark in hue and has a “hole” in the middle, it is likely that the consistency of the coffee grounds was too fine or the quantity of grounds was too large.
If the crema is very dark in hue and has a “hole” in the middle, it is likely that the consistency of the coffee grounds was too fine or the quantity of grounds was too large.
如果说克丽玛的色泽太深，而且中间还有个「洞」，那很有可能是咖啡粉末太细，或是粉量太多。