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Fermentation Atlas

Cheese from Italy

Stelvio / Stilfser DOPStelvio

Wheel 34–38 cm across, 8–11 cm high, 8–10 kg; fat in dry matter ≥50 %, moisture ≤44 %; orange-brown rind. Made in 5 steps over 2 months. The longest step, ripen on wooden boards with rind care, takes at least 2 months (Domanda di registrazione 'Stelvio/Stilfser' 2005). native aerobic surface bacteria that colour the orange rind does most of the fermenting.

Key numbers
Main stepat least 2 monthsSet[eu-application][eu-application-2][onaf]Ripen on wooden boards with rind care
Temperature32–33 °CSet[eu-application][eu-application-2][onaf]Add calf rennet (2020 amendment also allows other, including vegetable, coagulants)

Recipe

No fixed amounts recordedWhat goes in. No source gives amounts for this ferment.
cow milk
lightly skimmed to 3.45–3.80 % fat (3.45–3.60 % in the 2005 spec); pasteurised per ONAF facets
Starter: native microflora 'of various strains of aerobic bacteria' used in the make (spec); ONAF lists an antimicrobial (lysozyme) among ingredients

Total time across the recorded steps: 2 months

Start
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32–33 °Cshapes, not to countLactic acid bacteria

What changes: Calf rennet goes into the milk at 32–33 °C

Step 1 of 5
Add calf rennet (2020 amendment also allows other, including vegetable, coagulants)
Time
20–27 min
Set
Temperature
32–33 °C
Set
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Lactic acid bacteria

Output: coagulum.

Flavour
milky
Texture
gel
Colour
Not documented

Microbes at work in this step

LAB

Method

Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source

History and sources

Every number is labelled with how it is known. How this atlas is made

PDO registered 2007 (Reg. (CE) 148/2007 per OJ L 46, 16.2.2007), amended 2013 and 2020. Spec cites late-medieval traces and the 1914 Stilfs dairy description.

  1. [eu-application] Domanda di registrazione 'Stelvio/Stilfser', GU UE C 251, 11.10.2005, via ONAFspec
  2. [eu-application-2] Domanda di modifica, GU UE C 317, 25.9.2020 (CELEX 52020XC0925(02)), via ONAFspec
  3. [onaf] ONAF scheda 'Stelvio - Stilfser' (id 251)web