Sometimes you would like a glass of wine at home… but if you are the only person imbibing, or you and your partner aren’t up for finishing an entire bottle, what do you do with the unfinished portion?
Wine stores and websites will sell you all manner of devices claiming to preserve your leftover wine via various methods of removing air from the partial bottle to prevent oxidation. These usually involve a cork replacement through which either a reverse pump sucks out the air to create a partial vacuum or an inert gas is pumped in to replace the normal air.
But the point of these gadgets is to keep the wine from being in contact with air – so all you need is an appropriately-sized bottle with an airtight closure. This is what I use: