Type of milk
The fact of using the alpine huts in the Ossola Valley has been recorded since before the beginning of the first century. The Ossola mountain, even at considerable altitudes, provides open spaces that are well protected from the winds and suited to pasturing animals and the local alpine hut dwellers have made the most of these elements in their production of excellent cheeses. The most famous Ossola alpine hut is the Bettelmatt in the high Val Formazza in the north of the area.
Other great Ossola alpine pastures can be found in the nearby Val Bognanco, Val Divedro, Val di Campo and Valle Antrona (this is the case of Toma di Roberto). They have a very limited production with only a few hundred forms each every year, made in July and August and brought down to the valleys on donkeys or, over the past few years, by helicopter.