The first thing to consider is slice: it must be thin (1 - 1.5mm) in order to taste Bresaola's fragrance that will spread out while chewing.
The first visible characteristic is slice colour, which must be brilliant uniform red. There can be some thin white streaks of fat.
Fragrance reminds the dressing used to prepare Bresaola: spices, especially pepper, and, if used, wine.
To taste Bresaola you have to put a little slice in your mouth, chew slowly and, with your mouth closed, inspire.
If you pay attention you will also be able to taste dry and red fruit aromas and mushrooms too.
While you are chewing, Bresaola's structure must not be gummy and fibrous., but soft and smooth. After swallowing, your mouth must remain clean with a soft spicy persistence and you should want to taste another slice.