The AOC regulations allow up to 15 per cent total of Chardonnay, Pinot blanc and Pinot gris as accessory grapes in the red wines, but this not very often practiced.

I decided not to (as it happened, clouds interfered with seeing, so it was just as well) and caught fugitive glimpses of an eclipse that was only 95 per cent total, from my backyard.

The AOC regulations also allow up to 15 per cent total of Chardonnay, Pinot blanc and Pinot gris as accessory grapes, but this is practically never used for any Burgundy Grand Cru vineyard.