@BrentSullivan
Part 2
This process can help to mellow out the harsh flavors and aromas of the whiskey and can bring out more subtle and complex flavors.
However, too much oxygen exposure can lead to over-oxidation, which can result in a loss of flavor and quality. This is why whiskey is typically aged in barrels that have been charred on the inside - the charred wood helps to regulate the amount of oxygen that enters the barrel and interacts with the whiskey.