Question: how long to let a bottle of red wine breathe?
Answer: The amount of time red wine needs for aeration depends on the age of the wine. Young red wines, usually those under 8 years old, are strong in tannic acid and require 1 to 2 hours to aerate. Mature red wines, generally those over 8 years old, are mellow and need to breathe for approximately 30 minutes, if at all.