Can You Drink Wine That Was Left Out Overnight

Is it safe to drink wine that was left out overnight? As a wine enthusiast, I have often found myself faced with the question of whether it is safe to drink wine that has been …

As an Amazon Associate we earn from qualifying purchases.

Is it safe to drink wine that was left out overnight?

As a wine enthusiast, I have often found myself faced with the question of whether it is safe to drink wine that has been left out overnight. We all know that wine is a delicate beverage that requires proper storage to maintain its quality. But what happens when you accidentally forget to put the cork back in, or simply leave the bottle open for longer than intended? Is it still safe to indulge in that leftover glass of wine?

Before we dive into this topic, it’s important to note that I am not a medical professional. The information I am about to provide is based on my own experience and research. If you have any health concerns, it’s always best to consult a healthcare professional.

What Happens to Wine When Left Out?

When wine is exposed to air, it undergoes a chemical reaction known as oxidation. This process can alter the taste, aroma, and color of the wine. Oxygen reacts with the compounds in the wine, breaking them down and causing a loss of flavor and freshness. In general, red wines tend to be more resilient to oxidation than white wines due to their higher levels of tannins and antioxidants.

When you leave a bottle of wine uncorked or open overnight, you are exposing it to air and accelerating the oxidation process. The longer the wine is exposed, the more pronounced the effects of oxidation become. This can result in a wine that tastes flat, dull, or even vinegar-like.

Is it Safe to Drink?

The safety of drinking wine that has been left out overnight depends on several factors. Firstly, it’s important to consider the alcohol content of the wine. Alcohol acts as a natural preservative and can inhibit the growth of harmful bacteria. So, wines with a higher alcohol content are generally less prone to spoilage.

See also  How To Open Wine Bottle Without A Corkscrew

However, it’s worth noting that even though alcohol can inhibit bacterial growth, it doesn’t guarantee the wine is safe to consume. If you notice any off-putting odors, strange tastes, or a fizzy texture in the wine, it’s best to err on the side of caution and discard it. These signs could indicate the presence of harmful bacteria or spoilage.

How to Store Leftover Wine

To maximize the lifespan of leftover wine, there are a few simple steps you can take:

  1. Recork or reseal the bottle tightly to limit the wine’s exposure to air.
  2. Store the wine in a cool, dark place to slow down the oxidation process.
  3. If you have a smaller amount of wine left, consider transferring it to a smaller container to minimize the wine-to-air ratio.

By following these steps, you can help preserve the quality and flavor of your wine for a longer period.


In conclusion, while it may be tempting to indulge in that glass of wine that was left out overnight, it’s important to consider the potential effects of oxidation and the safety of the wine. In general, it’s best to exercise caution and trust your senses when it comes to consuming wine that has been exposed to air for an extended period. Remember, when in doubt, it’s always better to be safe than sorry. Cheers!

John has been a hobbyist winemaker for several years, with a few friends who are winery owners. He writes mostly about winemaking topics for newer home vintners.
What Temp To Keep Red Wine

As a wine lover, I have discovered that the right temperature is essential in enhancing the taste and aroma of Read more

What Temperature Should Red Wine Be

As an avid wine lover, I have learned that the ideal serving temperature greatly impacts the taste and fragrance of Read more

How to Sterilize Winemaking Equipment

Welcome to the captivating world of winemaking, where every single drop and piece of equipment carries significance. It's not a Read more

Winemaking Area Sanitary

Ah, the beautiful craft of making wine. It's a balance between nature and technology where every little detail holds immense Read more