Chardonnay is one of the most divisive wines in the world. It’s also the most popular. Naturally when you’re the most popular of anything you attract a lot of people on both sides of the fence.
Maybe you love it, maybe you hate it, and maybe you just haven’t tried the right one. This versatile grape is the chameleon of varietals, with a play-doh like malleability that allows it to take on a huge range of styles.
From old world to new world
Chardonnay originally came from France, specifically Burgundy, where a cooler climate, rugged limestone soil, and a traditional winemaking approach often guide it toward a more austere “Old World” style wine. White Burgundy tends to be lighter in color, with pronounced citrus fruit, white flowers, nuanced spices, minerality, and racy acidity.
Then you have the “New World” approach, or what some might call “California style” Chardonnay. The warmer weather steers Chardonnay toward a different personality. It’s usually darker yellow in color, with ripe tropical fruit flavors, thick texture, and less acidity. Brands like Rombauer push the limits of new world style Chard with their super-rich, buttery style that you either love or hate.
Geography isn’t the only factor in determining if a Chardonnay fits the old or new world mold. There’s no “one size fits all” approach you can apply to Chardonnay from any single region. Each style is as much guided by weather and climate as it is by a winemaker’s philosophy.
Some winemakers stand firm in their belief that old world approach shines light on the purity of Chardonnay while others believe their new world style amplifies the fruit’s character. Others bridge the gap between both styles. Neighboring producers in Sonoma and Chablis can produce vastly different Chardonnay using the same exact grapes depending on their winemaking decisions.
How oak shapes Chardonnay
By itself, Chardonnay has a fairly neutral flavor. When it comes in contact with oak, a lot can happen. Oak’s dramatic impact on Chardonnay can include:
- Imparting rich flavors of vanilla, butterscotch, creme brulee and caramel.
- Developing richer, more hedonistic flavors as the wine spends more time in contact with the wood.
- Enriching a deeper color from natural oxidation.
Some winemakers blend various lots in different types of oak, mixing new and used, or alternating toast levels and working toward a final master blend of their choosing to get the exact profile they’re looking for.
They don’t call oak the winemaker’s “spice rack” for nothing.
The unoaked disciples
Whether by tradition or just their personal preference, some winemakers don’t use any oak. They might choose to ferment in stainless steel or concrete eggs instead. Their “unoaked” Chardonnay stands out as a pure expression of the grape.
Unoaked Chardonnay isn’t always crisp and racy though. If the winemaker introduces malolactic fermentation or keeps the juice fermenting on lees, the texture and flavor can change dramatically.
Where’s the butter?
Let’s talk about the ubiquitous buttery note you find slathered all over some Chard. It probably the most polarizing aspect of Chardonnay.
This buttery flavor is a byproduct of a process called malolactic fermentation. Some of the effects of malolactic fermentation include:
- Giving the wine a softness, a sort of oily texture.
- Creating the buttery note (some) people love along with some secondary notes of hazelnut or baked bread.
- Raising the PH, making the wine less acidic.
Wine contains a lot of acids, one of which is malic acid. This gives wine a green apple taste – especially notable in Chablis. If a winemaker decides to add certain bacteria into the mix, malic acid turns into lactic acid. When this happens, another byproduct called diacetyl is produced, which tastes just like butter.
Sometimes you’ll read that a wine has 30% ML and was aged in neutral oak barrels. Others might go full 100% ML. Just like oak, the amount of “malo” depends on the winemaker’s preference. Some feel it brings a perfect harmony of flavor between the oak and Chardonnay’s natural profile. The biggest butter bombs combine 100% malolactic and lots of new oak.
Aging “sur lie” adds texture and complexity
There’s one more winemaking decision important in shaping Chardonnay. Lees include dead yeast cells and other sediment that falls to the bottom of the barrel or tank during fermentation. As they break down, all sorts of amino acids, proteins and other little flavor shaping compounds release. Some winemakers like to stir the lees, a process called Bâtonnage. As the lees come in contact with the wine they impart these subtle flavors into the wine.
Chardonnay is the most widely planted varietal, occupying nearly 400,000 acres in vineyards around the world. Few other wine grapes have such a broad range of styles. If you’re part of the “anything but Chardonnay” crowd, maybe you’ve just been drinking the wrong styles and it’s time you gave it another shot.
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