m.gafei.com授权转载《意式咖啡常识 关于espresso出品标准的讨论》咖啡知识内容,意式咖啡常识 关于espresso出品标准的讨论有关的风味和产地信息。关于 espresso 出品标准的讨论 Question by Alketa, Jan. 16, 2012 4:07 PM Hello Mr. Michele. I have a question regarding the extraction time for the espresso coffee. I have read that the exact time is 25-30 sec, but recently i heard that is 1