Protected Names

I spent fourteen batches of recipe writing bumping into protected names, and I started out thinking they were one thing: a rule that says this cheese must come from this place. That is not what they are. By the time I had worked through the makes, the world tour and the uncommon cheeses, I had counted fifteen genuinely different instruments wearing the same label — and two of them do the opposite of each other.

This page is the collected answer. It is the one part of cheese law that actually changes what is in your mouth, because in several cases the protected specification is the reason a cheese is made the way it is.

I am not a lawyer and none of this is legal advice. It is a cheesemaker reading specifications.

The three EU schemes, which are not interchangeable

Under Regulation (EU) No 1151/2012 there are three:

• PDO (AOP in French, DOP in Italian) — Protected Designation of Origin. Every step — production, processing, preparation — happens in the defined area, with recognised know-how.
• PGI (IGP) — Protected Geographical Indication. At least one step happens in the area. That is a much weaker link, and it is the source of most of the confusion below.
• TSG — Traditional Speciality Guaranteed. No geographical link at all. It protects a recipe or a method, and anyone anywhere may use the name if they follow it.

Hold on to that last one. A TSG is a protected name with the geography removed, which already breaks the intuition most people start with.

Fifteen things a “protected name” turns out to be

Each of these came out of researching an actual cheese, and each one surprised me.

1. A place. The ordinary case, and the one everybody assumes is the only case.

2. A cave. Roquefort does not protect a recipe so much as the right to ripen in a particular set of cellars at Roquefort-sur-Soulzon, ventilated by the fleurines left by an ancient landslide. Rights there have been claimed since 1411. The thing protected is a basement.

3. A ban on raw milk. The Stilton PDO forbids it, following a 1989 trade decree after an outbreak whose culprit was never established. This is why Stichelton — made inside the qualifying counties, to the old method — cannot use the name. It is disqualified by process, not place.

4. A requirement of raw milk. The Dutch Boerenkaas TSG demands it. Precisely the inverse of Stilton, decided in the same era, a few hundred miles away.

5. A cattle breed. Single Gloucester has a PDO doing genuine conservation work on the Gloucester breed — while Double Gloucester, the famous one, is unprotected.

6. A measurement. Oscypek’s specification runs to numbers: at least 60% sheep’s milk, 600–800 g, 17–23 cm, and only from the largest spindle mould.

7. A branding iron. Boeren-Leidse met sleutels — “with keys”. The crossed keys stamped into the rind are inside the protected name.

8. A trade secret. Appenzeller’s herbal Sulz brine protects nothing in law. It works purely by non-disclosure, and it is doing marketing work as much as anything else.

9. A ledger. Comté needs roughly 500 litres per wheel, which is more milk than one farm had. That forced the fruitière, the cooperative dairy — and a cooperative has to record who brought what. The bookkeeping is part of the technology.

10. A stricter name nested inside a looser one. Grana Padano permits silage and answers the resulting problem in the vat with egg-white lysozyme (E1105, max 2.5 g/100 kg, in the spec since 1991). Parmigiano-Reggiano bans the additive and bans bactofugation and microfiltration by name, leaving only the farm as a fix — so its herds are prohibited from even possessing silage. Trentingrana sits inside Grana Padano’s own PDO and opts out of the silage allowance.

11. Coexistence. Le Gruyère AOP (Swiss) and Gruyère IGP (French) are both legitimate, and they are different cheeses. The dispute did not end with a winner.

12. Accommodation of variation. Cabrales writes the seasons into the spec: which milks, in what proportion, depending on the time of year.

13. A schedule rather than a description. Halloumi’s PDO (Reg. (EU) 2021/591) requires more than 50% sheep’s or goat’s milk from an island that cannot currently supply it. The transition expired in 2024 and was extended to July 2029, and in the meantime the legal definition is a percentage that moves with the season. The challenge was dismissed (Papouis Dairies v Commission, T-361/21).

14. A refusal. Mexico’s IMPI refused Cotija a denominación de origen on the ground that the word had gone generic, granting only the collective mark “Queso Cotija Región de Origen” (22 February 2005).

15. Protection running backwards. Havarti — a word already widely generic — received a PGI in 2019 anyway, over US objection. The exact inverse of Cotija, on the same facts.

⭐ And a sixteenth, if you count the negative case: Herve is Belgium’s only cheese PDO, and it is nearly extinct. A protected name is not a survival guarantee.

🔴 The finding that reorganised the page: the same word, protected here and generic there

This is the part I did not expect, and it is the reason the page exists.

“Gruyère” is a protected designation in Switzerland, a coexisting protected designation in France, and a generic English word in the United States — the last one by federal appellate ruling.

In Interprofession du Gruyère v. U.S. Dairy Export Council, 61 F.4th 407 (4th Cir. 2023), decided 3 March 2023, the Fourth Circuit held that “cheese consumers in the United States understand ‘GRUYERE’ to refer to a type of cheese, which renders the term generic.” Not a place — a category, alongside brie and swiss, that can come from anywhere.

And look at what the court leaned on. Among its evidence: “the FDA standard of identity for ‘Gruyere cheese’ is evidence that the term ‘GRUYERE’ is generic.” Since 1977 the United States has published a recipe — 21 CFR 133.149, 45% milkfat in the solids, no more than 39% moisture, at least 90 days old, small holes — that any factory anywhere may follow, and that regulation mentions no country at all.

⭐⭐ So the two halves of this wing are one mechanism seen from opposite ends. Writing a standard of identity for a place-name is how a country makes that place-name generic. The United States did not argue Gruyère out of its geography in 2023; it did so in 1977, by publishing a recipe, and the court simply noticed.

The same is true of the biggest one. 21 CFR 133.165 is headed “Parmesan cheese, reggiano cheese” — American law does not merely tolerate “Parmesan” as generic, it makes “reggiano” generic too, by printing it as a synonym in the regulation. Cured not less than 10 months, not more than 32% moisture, not less than 32% milkfat in the solids. Nothing about Emilia.

⚠ Do not over-read this into “the US always wins and the EU always loses.” Jurisdictions genuinely disagree, and recently: courts in Ecuador and Singapore have gone the other way on whether “Parmesan” is equivalent to “Parmigiano Reggiano”. The honest summary is that genericness is a finding of fact about consumers in one country, so it can be true in one place and false in another at the same moment.

What this means at my bench

Very little, legally — and that is worth saying plainly, because it is easy to read a page like this and feel constrained.

If I make a blue in my basement in Michigan and never sell it, no protected name reaches me. If I give a wheel to a neighbour and call it Roquefort, I have said something inaccurate, not something unlawful. The names bite on commerce, not on cooking. The moment I sell, the rules on labels and what I may legally call the thing start to matter, and in Michigan there is a prior question about whether I may sell at all.

What the names have genuinely changed is how I make things. Reading the Parmigiano spec is what taught me why silage matters. Reading the Comté spec is what made me understand the cooperative. Reading Halloumi’s told me that a legal definition can be a plan rather than a description. That is a better return than I expected from a body of regulation.

Sources

• Regulation (EU) No 1151/2012 on quality schemes for agricultural products and foodstuffs (PDO / PGI / TSG definitions).
• Interprofession du Gruyère v. U.S. Dairy Export Council, 61 F.4th 407 (4th Cir. 2023), No. 22-1041, decided 3 March 2023.
• 21 CFR 133.149 (gruyere cheese); 21 CFR 133.165 (parmesan cheese, reggiano cheese).
• Regulation (EU) 2021/591 (halloumi / χαλλούμι); Papouis Dairies v Commission, T-361/21.
• Individual product specifications as cited per cheese in the world tour and the makes.