Hi all, I’m a novice and an enthusiast home wine maker. This is my 2nd year making wine and looking to experiment with oak barrel aging. I have a Cab Sauv going to MLF now, and when some, I plan to barrel age. My carboy is 6 gallons, topped to the neck. Originally I wanted to buy a 6 gallon barrel from Vidai (Hungarian Oak), but lately I’ve been thinking a 5 gallon might be better due to natural wine evaporation. Being it’s a small barrel (5 or 6 gallon), I plan to age several months for fear of over oak. Question: Roughly, how much wine can I expect to lose per month in an oak barrel? Should I buy a 5 or 6 gallon barrel if my carboy is 6 gallon? If the loss is high, I will probably buy a 5 gallon. If the loss is minimal, I can buy a 6 gallon and plan to top off with store bought wine of same varietal. Appreciate any advice you guys can give.