What Is Wine?

Crushed grapes meet yeast. Fermentation consumes sugar and creates alcohol and CO₂. Contact with skins, pulp, and seeds changes the result: whites are usually pressed early for freshness, reds soak with skins for color and tannin. Oak and time can add spice, toast, and polish.

Remember:  Wine  🟰  grape sugars  ➕  yeast   ➡️  alcohol ➕ style.

Wine grapes are not table grapes. They are smaller, sweeter, have thicker skins, and contain seeds. These traits concentrate flavor, acidity, color, and tannin. Most fine wine comes from Vitis vinifera varieties such as Pinot Noir, Merlot, and Riesling, among thousands more, each with its own voice.

Grapevines are perennial. Budbreak in spring, flowering, berry growth and veraison in summer, then harvest. Climate sets the frame: cool sites give higher acidity and lighter bodies; warm sites push riper fruit and fuller texture. Soil, altitude, slope, and exposure shape drainage and sunlight. This full set of conditions is terroir.

A vintage is the harvest year on the label. Weather in that year affects ripeness and structure, so collectors compare vintages. Non-vintage (NV) blends several years to keep a consistent profile, common in sparkling and fortified categories. Vintage tells a single-year story; NV offers reliability.

A single-varietal wine is made mostly from one grape, showing a clear identity (Chardonnay, Touriga Nacional). A blend combines varieties to balance aroma, mid-palate, and structure. A field blend comes from old mixed plantings harvested and fermented together, classic in parts of Portugal, giving seamless complexity.

❌  “Sulfites cause headaches.”
Most wines contain sulfites for stability, but dehydration and histamines are more common culprits.

❌  “Older is always better.”
Many wines are made to be enjoyed young. Age helps only when fruit, acidity, and tannin are in balance.

❌  “Screw caps are cheap.”
They are excellent closures for freshness and consistency. Although in countries such as Portugal – a high-quality cork producer – it is very rare to find this type of system.

1️⃣  Serve slightly cooler than target. Wine warms fast in the glass.

2️⃣  Ice and water chill faster than ice alone – submerge the bottle fully.

3️⃣  Use a wine thermometer for precision, especially with Champagne and fine whites.

🇪🇺  EU: “Organic wine” uses organic grapes and may include sulfites with lower maximums.

🇺🇸  US: “Organic wine” must use organic grapes and no added sulfites.

Many estates follow sustainable or biodynamic practices as well. Certification helps, but healthy fruit and careful work are what you taste.

🥂  Aperitif and celebrations: crisp whites and sparkling.

🦞  Seafood and salads: high-acid whites and rosé.

🥘  Roasts and stews: medium to full reds with fine tannins.

🧀   Cheese and dessert: late-harvest whites, Tawny Port, or Madeira.

🍸   Cocktails: dry or sweet vermouth.

Wine is simple at the core and endlessly varied in detail. Understand the fermentation basics, read vintage and style on the label, then choose for the moment. Start with classics, follow your palate, and let curiosity lead.