shawndo wrote:I always thought you use the word "single/double/triple" after the amount of ground coffee going in and "ristretto/normale/lungo" for the bev ratio.
i.e. you would always say both parts, "triple ristretto" or "double normale/straight double"
I'd say that's correct, though I've not heard the term "straight double", and we use "brew ratio" rather than "bev ratio".
Single, double and triple refer to the nominal dose sizes of 7g, 14g and 21g, respectively, and the corresponding baskets. Of course, you can dose in-between, like 15g or 18g. Assigning single, double and triple to the in-between doses is sort of vague, but probably most people would call a dose under 12g a single, a 14g-18g dose a double, and anything 20g or up a triple.
Ristretto, Normale and Lungo refer to the brew ratio, or the ratio of ground coffee weight to final beverage weight. Except perhaps for Normale, which is nominally 1:2, these don't refer to a specific brew ratio, but rather a range. I think of them relative to the nominal Normale: a Ristretto could be defined as anything under 1:2 and a Lungo could be defined as anything over 1:2.