Opening a bottle of wine is always a delight, but what do you do when you can't finish it in one sitting? Fear not, as there are several methods to save opened wine and extend its lifespan. Whether you're a wine connoisseur or an occasional drinker, these tips and techniques will ensure that you can enjoy your wine for days to come.

1. Recork and Refrigerate:
After opening a bottle of wine, the first step is to reseal it tightly with the cork or a wine stopper. This will prevent excessive contact with air and slow down the oxidation process. Remember to store the bottle upright in the refrigerator to maintain its freshness.

2. Use a Vacuum Pump:
Investing in a wine vacuum pump is an excellent way to prolong the life of your opened wine. This handy tool removes the air from the bottle, creating a vacuum seal that prevents oxidation. Simply insert the stopper into the bottle, pump out the air, and store it in the refrigerator.

3. Transfer to Smaller Bottles:
Another effective method is to transfer the leftover wine into smaller bottles. By using bottles with less headspace, you minimize the amount of air in contact with the wine. Fill the smaller bottle as much as possible, seal it tightly, and refrigerate.

4. Preserve with Inert Gas:
Inert gases like argon or nitrogen are great for preserving opened wine. These gases create a protective layer on top of the wine, preventing oxygen from coming in contact with it. Simply spray the inert gas into the bottle and reseal it immediately.

5. Freeze Wine Cubes:
If you have a small amount of leftover wine, consider freezing it in ice cube trays. This technique is especially useful for cooking recipes that require a splash of wine. Once frozen, transfer the wine cubes to a freezer bag and label with the date for future use.

6. Cook with Leftover Wine:
When all else fails, why not put your leftover wine to good use in the kitchen? Wine can add depth and flavor to a variety of dishes, from sauces and stews to desserts. Just make sure to use it within a few days of opening.

Remember, the quality and flavor of opened wine will gradually deteriorate over time, even with these preservation methods. It's best to consume it within 3-5 days for optimal enjoyment. So, the next time you find yourself with an unfinished bottle of wine, try these techniques to make the most of your investment and savor every last drop.