This tool is a little pump with a bottle stopper.
Red wine preservation after opening.
There are also inert gas wine preservers.
Storing your red wine in the refrigerator keeps it fresh for a longer time.
There are a few methods used to prolong shelf life all based on minimizing exposure to oxygen either by replacing or removing the oxygen or reducing the surface area of the wine.
In this case inert gas is pumped into the open wine bottle.
Low tannin levels are mostly found in merlot and pinot noir.
Thus the key is to reduce the amount of oxygen touching the surface when storing open red wine.
Note that dark rich reds like cabernet sauvignon and petite sirah will generally keep for longer than lighter red varieties like pinot noir.
Keep opened bottles of red wine not just white wine in a wine chiller or the fridge.
Just allow leftover red wine to warm back to room temperature before serving.
Syrah nebbiolo and cabernet sauvignon are the red wines that contain higher tannin levels.
Once you open it will remain delicious for five days if treated with the utmost care.
If you intend to keep your red wine for a week after opening it you may consider having a wine preserving tool like vacu vin wine saver.
Keep the red wine bottle out of light.
It is advisable to re cork your red wine after every glass pour.
These may last up to 2 to 3 days once you open it.
This will pump out the air and create a vacuum inside the wine bottle thereby halting the oxidation process or reducing the rate of oxidation.
To use the vacuum wine saver place the vacuum wine stopper in the opening of the wine bottle.
Oxygen turns red wine into vinegar.