Malic acid is a naturally occurring acid found in grapes, and it plays an essential role in the winemaking process. It is commonly used to adjust the acidity levels in wine and to enhance the overall flavor profile of the finished product.
During the winemaking process, malic acid is naturally present in grape juice. However, some winemakers choose to add additional malic acid to the wine during the fermentation process to increase acidity levels or to enhance the wine's flavor.
Malic acid is particularly useful in cooler regions where grapes have a naturally lower acidity level. By adding malic acid, winemakers can increase the wine's overall acidity and create a more balanced flavor profile. Additionally, malic acid can also enhance the fruit flavors in the wine, especially in white wines like Chardonnay.