I will let Jim chime in as well. I have 4 (neutral) 23L Vadai's.
You need to top up at most every two weeks. Any longer and you will have too much headspace and risk oxidizing your wine. At two weeks you will add 4-6 oz depending on your storage conditions (temp, RH)
Never use the wooden bungs, they are a PITA and stick and don't seal very well. Only use a silicon bung.
A barrel will impart oak for ~ 2years of constant use. After that its neutral so you just start adding oak spirals or cubes or staves for the oak flavor. What is more important than oak flavor from the barrel is the micro-oxidation and concentration through evaporation (angels share) These are the things that will take your wines to the next level and what no amount of storage in a sealed glass container will ever achieve.
Small barrels like these are good for about 6-7 months max more than that is just too much oxidation due to the higher wood to wine ratio over larger sized barrels.
You need to top up at most every two weeks. Any longer and you will have too much headspace and risk oxidizing your wine. At two weeks you will add 4-6 oz depending on your storage conditions (temp, RH)
Never use the wooden bungs, they are a PITA and stick and don't seal very well. Only use a silicon bung.
A barrel will impart oak for ~ 2years of constant use. After that its neutral so you just start adding oak spirals or cubes or staves for the oak flavor. What is more important than oak flavor from the barrel is the micro-oxidation and concentration through evaporation (angels share) These are the things that will take your wines to the next level and what no amount of storage in a sealed glass container will ever achieve.
Small barrels like these are good for about 6-7 months max more than that is just too much oxidation due to the higher wood to wine ratio over larger sized barrels.