Does Portuguese green wine stay good in an unopened bottle?

Unopened bottles of Portuguese green wine, also known as Vinho Verde, can indeed stay good for a considerable amount of time, but it depends on a few factors:

Factors that influence shelf life:

* Type of Green Wine: Most Green wines are best consumed within a year or two of bottling. However, some higher-quality, aged Green wines can last longer.

* Storage Conditions: Proper storage is crucial. Store your bottle in a cool, dark place away from direct sunlight and heat. Ideally, the temperature should be between 50°F and 59°F (10°C and 15°C).

* Closure Type: A good quality cork or screw cap will help preserve the wine's freshness.

General Guidelines:

* Most Green Wines: Aim to consume within 1-2 years of purchase.

* Aged Green Wines: These can last for 3-5 years, sometimes even longer.

* Sparkling Green Wines: These tend to be less stable and may lose their fizz after a year or two.

Signs of Spoilage:

* Change in Color: If the wine has turned brown or cloudy, it might be spoiled.

* Off-putting Smell: A vinegary, sour, or musty aroma indicates spoilage.

* Taste: The wine should taste fresh and lively. If it's flat, sour, or bitter, it's probably not good anymore.

Conclusion:

Generally speaking, unopened bottles of Portuguese Green wine can stay good for a reasonable period. However, it's always best to enjoy them within the recommended time frame for optimal freshness and flavor. If you have any doubt, trust your senses – if it doesn't look, smell, or taste right, it's best to discard it.