Making wine at home is rewarding, but mistakes can ruin batches. Here are the most common mistakes and how to avoid them.

1. Poor Sanitation

The #1 cause of wine problems. Always sanitize everything that touches your wine. Use Star San or metabisulfite.

2. Using Table Grapes

Table grapes lack the tannins, acidity, and sugars needed for good wine. Use wine grapes or appropriate fruit wine ingredients.

3. Ignoring Temperature

Fermentation that's too warm produces off-flavors. Keep fermentation between 65-75°F (18-24°C).

4. Not Using Yeast Nutrients

Yeast need nutrients to ferment properly. Without them, fermentation can stall or produce sulfur smells.

5. Rushing Fermentation

Patience is key. Let fermentation complete naturally. Rushing leads to unstable wine.

6. Too Much or Too Little Sulfite

Sulfites protect wine but too much tastes harsh. Follow recommended doses (1 Campden tablet per gallon).

7. Exposing to Oxygen

While some oxygen helps aging, too much turns wine into vinegar. Keep airlocks in place.

8. Not Racking Enough

Leaving wine on sediment too long creates off-flavors. Rack at least 3-4 times during aging.

9. Bottling Too Early

Wine needs time to clear and stabilize. Bottling cloudy wine leads to re-fermentation in bottles.

10. Giving Up After Failure

Every winemaker fails. Learn from mistakes and try again. Even professionals have bad batches.