It All Starts with Sugar

Wine begins with grapes, and grapes naturally contain sugar. During fermentation, yeast converts that sugar into alcohol.

If the yeast consumes nearly all of the sugar, the wine is considered dry. If some sugar is left behind, that’s what we call residual sugar, or RS.

Even dry wines usually have a small amount of sugar, but not enough for most people to perceive as sweet.

Why a Dry Wine Can Taste Sweet

This is where things get interesting.

Sometimes a wine tastes sweet even when it technically isn’t. That can come from a few different places:

• Fruit flavors like ripe berries, peach, or vanilla can trick your brain
• Higher alcohol can create a slightly sweet impression
• Lower acidity can make a wine feel softer and rounder
• Glycerin, a byproduct of fermentation, adds weight and a smooth texture

All of these can give the impression of sweetness without actual sugar being high.

Clues You Can Use When Shopping

If you’re trying to figure out sweetness before buying a bottle, here are a few simple things to look for:

• Alcohol level: Lower alcohol (around 11% or below) can suggest some sweetness
• Sparkling terms: Brut Nature is very dry, while Demi-Sec and Doux are noticeably sweet
• Grape variety: Some grapes lean dry (like Sauvignon Blanc), while others are more often off-dry (like Riesling or Gewürztraminer)

How to Taste for Sweetness

When you take a sip, pay attention to a few things:

• Do you feel it right on the tip of your tongue?
• Does the wine feel heavier or more coating?
• Does it feel balanced, or does it lean soft and rounded?

One of my favorite tricks is to ignore the aroma for a second. Fruity smells can be misleading. Focus on what you’re actually tasting.

It’s Not About Avoiding Sugar

At the end of the day, wine isn’t about avoiding sugar. It’s about balance.

Some of the most refreshing wines in the world have a touch of sweetness balanced by bright acidity. Others are completely dry but feel rich and full.