Will wine go bad if left unrefrigerated after opening?

In this brief guide, we will answer the question, “will wine go bad if left unrefrigerated after opening?” and discuss can you drink unrefrigerated wine?

Will wine go bad if left unrefrigerated after opening?

Yes, wine can go bad if left unrefrigerated after opening. The longer the wine sits in an open bottle, the more likely it is that mold or bacteria will grow and spoil the wine.

Wine is a product of fermentation, and as such, it has a limited shelf life. This means that once the wine has been opened and exposed to air, it begins to lose its flavor and color. How long this will take depends on the type of storage of wine, the type of wine, and its age.

What makes wine go bad if left unrefrigerated after opening?

The oxidation and the temperature are two main things that can make wine go bad if left unrefrigerated after opening.

Wine is a complex liquid that cannot be stored indefinitely. Wine is made up of ethanol and water, the first step in its transformation from grape juice into wine. Ethanol is the substance that gives the wine its flavor and aroma, while water is responsible for keeping the alcohol from evaporating too quickly during storage.

The two substances are not compatible when exposed to oxygen for long periods of time. As oxygen permeates into the bottle or container, it begins to react with the alcohol molecules and destabilize them which contributes to spoilage.

Oxygen is the enemy of wine. Oxygen causes wine to spoil, and it also has a tendency to make wine smell bad. Oxygen also affects the color and flavor of the wine, which may make it look and taste very different than when you bought it.

It’s not just oxygen that causes this problem, it’s also temperature. As soon as you open a bottle of wine, it begins to lose its natural carbonation (which gives it a little bit of fizz) and gains more room for itself in your refrigerator than it did when you first stored it there. 

How long is unrefrigerated wine good after opening?

Unrefrigerated wine is good for a limited amount of time, as the alcohol in it begins to evaporate. The length of time that unrefrigerated wine will last after opening depends on several factors, including the type, the temperature at which you store it, and how much alcohol is in the bottle.

The amount of time that unrefrigerated wine can stay fresh depends on a number of factors:

Type of wine: Wines with high acidity tend to stay fresh longer than those with low acidity levels do because they have more acidity which keeps microbes away. Some types of wine will last longer than others if stored away from light or heat.

Temperature: If your room temperature is above 60 degrees Fahrenheit (16 Celsius), then your unopened bottle will lose its flavor faster than if it were stored at cooler temperatures (below 60 degrees Fahrenheit).

Oxidation: Unrefrigerated wine is good for about 3 to 5 days after opening. It’s important to keep in mind that the longer it sits out, the more oxidized and stale it will become. If you plan to consume your wine within 3 to 5 days of opening, be sure to store it in a cool, dry place.

Can you drink unrefrigerated wine?

Yes, you can drink unrefrigerated wine. Drinking unrefrigerated wine is not ideal, but it’s unlikely to do much harm.

If you’re drinking from a bottle that has been left open for a long time in warm temperatures, there is a possibility that the wine may have become contaminated by bacteria or has oxidized. This is more likely if you have stored the bottle at room temperature rather than refrigerated, as well as if you’ve opened the bottle and not kept it closed.

However, most wines will not be affected by this due to their higher acidity. It is always a good idea to store the leftover wine in a refrigerator rather than leaving it on the table unrefrigerated. When wine is stored in a cool place like your refrigerator, it’s less likely to go bad. If you’re just looking to store some wine for a few days in a refrigerator, it’s unlikely to cause any harm.


In this brief guide, we have addressed the question, “will wine go bad if left unrefrigerated after opening?” and discussed other questions related to the subject, such as can you drink unrefrigerated wine?



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