> If the goal were simply to make sure that Feta always tastes like "authentic"
Feta, then the regulations would focus on ingredients, process and the final
product. But regulations about where the product is produced exist because
producers want to exclude competition.
This is not true and you don't know things as well as you think you do. PDO
regulations absolutely focus precisely on ingredients, process and the final
product.
For example, PDO regulations for feta stipulate, among other details, that it
must be made with sheep's milk with the addition of up to 30% goat's milk and
that the milk must come from animals born and bred in the Greek regions of
Thessaly, Thrace, Epirus, Macedonia, Central Greece, Peloponse and Lesvos, from
the breeds adapted to the area and reared by traditional methods. The fat
content of the milk must be at least 6% w/w and the pH of the milk before the
cheese is made must be at least 6.5. The milk must be made into cheese at most
48 hours after milking. The finished cheese must be aged for at least two months
in brine containing 7% NaCl w/w. The final product must be a cheese
"distinguished by its slightly acid and salty taste and its properties of mild
lipolysis" (lipolysis imparts a piquant taste to cheese), with a maximum water
content of 58%, minimum fat content of 43%, and 2% salt in water. There are more
detailed instructions here:
https://ec.europa.eu/geographical-indications-register/eambr...
So the PDO regulates the provenance of the sheep milk, as well as the location
the cheese is manufactured, but obviously the focus is on the quality and
organoleptic characterisics of the ingredients in the specified territories,
and that because the same characteristics are not reproducible in different
territories (for example because the breeds of milk producing animals are
different and the flora they feed on, and therefore the soil bacteria that
flavour this flora, are different).
I also note that most "feta" cheese made outside Greece is actually made with
cow's milk. For example, this was the case with French, German and Danish "feta"
before Greece successfully defended its PDO and it is still the case today for
feta made in the US. I'm not sure about Australia, but it's probably the same
there. In Greece, cheese made in the same way as feta but with cow's milk is
called "telemes" and is also a PDO cheese.
As far as I can tell, no "feta" cheese made outside Greece has the piquant taste
imparted to cheese milk by lipases, that characterises Greek feta.