red wine aging

To untutored wine taster, older red wines seem to be softer and gentler than harsh, inky young red wines. Those who notice such things will also observe a change in colour, typically from deep purple to light brick red. There should also be more sediment in old wine than a young one.

All of these phenomena are connected, and they are particularly related to the behavior of phenolics. These phenolics are compounds found in grapes, particularly in the skins…