The sourcing
playbook
Cheese doesn’t trade on a futures exchange like cacao — but real economics and a genuinely unsettled regulatory question shape what reaches your counter.
The raw-milk question — an active regulatory story
Since 1949, US federal regulation has required cheese made from unpasteurized milk to age at least 60 days before interstate sale, on the theory that time, salt, and dropping pH eliminate dangerous pathogens.
A 2025 Cornell University study, funded by the FDA and published in Nature Medicine, found that 60-day aging does not on its own reliably inactivate H5N1 avian influenza in raw-milk cheese — though manufacturing at a low pH (around 5.0) appears more effective. FDA has intensified sampling and scrutiny of raw-milk cheese through 2026 as a result. The rule’s scientific basis has been questioned for over a decade (it traces to a 1946 study), and there is active industry and regulatory discussion about replacing a uniform 60-day rule with cheese-specific standards, closer to the EU’s approach of hygiene and testing rather than one fixed aging number. Nothing has been formally changed as of this writing — but expect this to keep moving.
By contrast, the EU has no uniform raw-milk aging requirement — it relies on animal health, hygienic milk handling, and microbiological testing instead, which is exactly why raw Camembert de Normandie (aged well under 60 days) is legal to sell in France but not across US state lines.
What’s in the price of a wheel
Given aging time and moisture loss, how much of a wheel’s price is actually the milk? Move the sliders:
Click through a working buying discipline:
Questions
Flashcards
Lock it in
From memory:
- What is the US raw-milk cheese aging requirement, and since when?
- What did the 2025 Cornell/FDA study find about 60-day aging and H5N1?
- How does the EU’s approach to raw-milk cheese differ from the US’s?
- Why does cheese lose weight during aging, and why does that matter economically?
- Name two things to check when buying cheese, beyond the name on the label.
Consolidation
& final
One wedge, read completely — from the milk that made it to the cave that aged it. Then a final test.
The whole arc, in one wedge
Pick up any cheese and you can now read its entire history. Milk species and diet (Session 5) set the raw material; coagulant choice (6) decided whether it could age at all; culture and microbes (7) determined its style family; cutting, cooking, and pressing (14) set its moisture and texture; affinage (15) either realized or ruined its potential; and its price reflects real economics — aging time, weight loss, and regulation (19) — not just marketing. That is cheese literacy: a chain of causes you can trace backward from a single bite.
The American Cheese Society (ACS) runs Certified Cheese Professional (CCP) exams and conferences that are the closest thing cheese has to a formal credential. The Oxford Companion to Cheese is the standard reference text. Specialty cheese shops with knowledgeable counter staff — and a running tasting log — will teach you more than any single book.
Comprehensive mock
Drawn from the whole course. 75% (9/12) is a solid pass.
Flashcards
You can read a wedge.
Twenty sessions from milk to board. The palate is now yours to keep training — one honest tasting note at a time.
Mark the course complete
Then go build a board, properly.