‘Bottle shock’ is a temporary condition in a wine where its flavors are muted or disjointed. There are two main scenarios when bottle shock can set in - either right after bottling, or when wines are shaken in travel. Usually a few days of rest is the cure. The evidence for this phenomenon is more anecdotal than scientific, but the theory is that all the complex elements in wine (phenolics, tannins, and compounds) are constantly evolving, both on their own and in relation to each other. Heat or motion can add stress to this evolution, causing the wine to shut down temporarily.
Are Pinot Noir and Chardonnay the only grapes permitted in Burgundy?
No, but Pinot Noir and Chardonnay are the most famous, popular, widely planted, and well-known grapes of Burgundy. Other notable Burgundian grapes included Gamay (red), which is grown in the Beaujolais region, Aligoté (white), which is found in value-priced wines of the region, and Sauvignon Blanc, which is the primary grape of St. Bris, near Chablis.