The advantage of using Oak Powder is obviously the 'convenience'. It is easier to use than both an oak wine barrel or Oak Chips. You can use oak powder during fermentation. Oak wood can affect a wine in a lot of ways--mostly good. If the right amount of oak powder is added the major benefits to your wine will be as follows:

1. Improved stability in the wine's clarity and color.
2. A reduction or softening of the harsher characters that are commonly associated with younger wines.
3. And, the addition of wood flavors that give an overall smoother and deeper texture to the wine.