並前往https://dancingmountaingoat.wordpress.com/2015/06/26/espresso-extraction-and-problems-%E7%BE%A9%E5%BC%8F%E6%BF%83%E7%B8%AE%E5%92%96%E5%95%A1%E7%9A%84%E8%90%83%E5%8F%96%E5%95%8F%E9%A1%8C/