1- Ristretto ... grind finer than standard espresso to achieve 18g out at standard espresso time . 2. Ristretto ... use standard espresso grind and stop shot when 18g out in cup at standard espresso time . I use method 1 . Who uses method 2 ? Hello 老板 , 不知道有问错吗,请问您是用什么方式呢?有分别吗 。😃 Thank you .