🧀 Stelvio

Stelvio, in German Stilfser, is an Italian semi-hard cow's milk cheese with a protected designation of origin (PDO) from the Autonomous Province of Bolzano – South Tyrol. Its orange to brown rind comes from local bacteria washed onto it as it ripens, and the name points to the Stelvio mountain area, its main home. ¹³

Two names for one cheese. The registered name has an Italian and a German form, Stelvio and Stilfser, after the village of Stilfs (Stelvio) at the foot of the pass. ¹³ The area lies between 500 and 2,000 metres, and much of the cheese comes from around the Stelvio National Park. ⁶

Cheese was once paid as rent. In Tyrol, the Schwaigen were farms that from the 13th to the 16th century paid their dues to landlords in cheese, as land registers of the time show. ⁵ The cheese itself is documented from 1914, in records of the Stilf dairy that describe it and how it was made. ³⁵ In the first half of the 20th century it fed poor rural families; later, producer cooperatives turned it into a real industry for South Tyrol. ⁵

Protection came in steps. The EU protection date is 2002, and the name was entered in the register in 2007 by Regulation 148/2007. ¹² The application was summarised in 2005, and in 2020 the Stelvio Cheese Consortium in Bolzano asked to amend the specification. ³⁴

The area covers 84 municipalities. It spans Val Venosta, Burgraviato, Salto-Sciliar, Val Pusteria, Val d'Isarco and the municipality of Bolzano, and every step from rearing the cows to ripening the cheese takes place there. ³⁵ Historical texts name the alpine grasses marbl and madaun as best for the milk. ³

Grass and hay feed the cows. On alpine pastures the cows eat mainly fresh grass; in stables they get hay freely and up to 15 kg of grass silage a day. At least 50% of the dry matter comes from local fodder, and feed from outside may not exceed 50% over a year. The milk must have over 3.10% protein and may be lightly skimmed to 3.45–3.80% fat, and since 2020 rennet other than calf's, including plant rennet, has also been allowed. ³

The curd is cooked and pressed. The milk is pasteurised and renneted at about 32–33 °C. It sets in 20–27 minutes and is cut to the size of maize grains; after part of the whey is drawn off, hot water raises the curd to 36–40 °C. The cheese is then pressed and brined for 36–48 hours. ⁵⁶

Local bacteria give the rind its colour. The wheels ripen for at least 60 days at 10–14 °C and 85–95% humidity on wooden boards and are turned and washed with weak brine at least twice a week. In the first two to three weeks the brine gets a house culture of Arthrobacter and Brevibacterium, which turns the rind yellow-orange to orange-brown. ⁵ A wheel weighs 8–10 kg, is 34–38 cm across and 8–11 cm high, with at least 50% fat in dry matter and at most 44% moisture; the flavour is aromatic and marked, sometimes pungent. ³

Searching for “Stelvio” usually leads to the mountain pass, the national park or a car, but this Stelvio is a cheese named after the same Stelvio area, where it is mainly made. What sets it apart from other semi-hard cow's milk cheeses is the rind: wheels ripen at least 60 days on wooden boards and are washed with weak brine at least twice a week, and a house culture in the brine turns the rind orange to brown. The colour is not added. The paste is firm with a marked, sometimes pungent flavour.

Look for the name “Stelvio” or “Stilfser” (the two registered forms), the EU PDO symbol (protected designation of origin) and the red “Stilfser-Stelvio” mark, which goes on only after 60 days, with the batch, date and producer code. Wheels are 8–10 kg, so most shoppers meet it as a pre-packed portion; portions may be packed outside South Tyrol, but only from marked wheels. Typical places to find it are a supermarket cheese counter or a delicatessen.

Why it matters to you. The red "Stilfser-Stelvio" mark goes on only after 60 days, together with the batch, date and producer code, and portions may be packed outside the area but only from marked wheels. ³ In South Tyrol the cheese is served with speck or melted on rustic polenta. ⁶