Harvest is finally over. Well almost over. Theoretically harvest is over because there are no more early mornings and long work days but the lasting effects of harvest are still present.
|Looking inside a barrel with malolatic fermentation|
Here at Talley we have a certain affinity with native fermentation both primary and secondary. Primary fermentation is just about wrapped up and we are now beginning secondary fermentation called malolactic fermentation. Simply put, we allow the native lactic acid bacteria to convert the malic acid in the wine to lactic acid. I like to say that malic acid is the apple acid and lactic acid is the milk acid. Malic acid is more acidic and lactic acid is smoother and is less acidic. Because we do not inoculate, our wines, our secondary fermentations tends to take longer. We allow this to happen in the majority of our wines excluding out Riesling, Sauvignon Blanc and Bishops Peak Chardonnay. The majority of our Chardonnays go through a very slow secondary fermentation with most not finishing until late spring and in some years, early summer.
|Special fermentation bung allows gas to escape without letting air in.|
So why are we doing this? Well first off we want the malic acid converted to lactic acid for the mouth feel. Secondly, we let malolactic fermentation happen intentionally so it doesn’t happen unintentionally in the bottle when it gets to your house. If you have ever had an “active” fermentation occur in bottle, you know it is not a fun wine to drink. Stale beer comes to mind when I think of this.
I didn’t write this to teach everyone about secondary fermentation but to explain that once the harvest is over, it’s not really over.