Can one vineyard consistently produce wine of a different quality or expression despite being separated by no more than a small dirt road?

It is the basis of the French A.O.C system and the clarion call of the ‘terroiristes’.

There are those who find this (very) frankly an unsatisfactory and even worse a completely unscientific explanation of the phenomenon – if indeed there is such a phenomenon.

Although starting on the (almost) completely different subject of reviewing Andrew Jefford’s super new book ‘The New France’ here in this thread a wonderfull display of entrenched positions emerge.