A tip from the winemaker
Basically, we serve all our wines open; the one or other bottle then stands around for a while with the cork pushed back in or screwed shut again. There's fresh air in the bottle. That's not good.
You can preserve the wine for longer by keeping it "vacuum-packed". We follow the advice of a winegrower (many thanks, Tino!) who also protects his open wines in this way when serving them. A vacuum pump removes the air from the opened bottle and seals it again, preserving the wine under vacuum and improving its storage life. The vacuum created slows down the oxidation process and the open wine can be stored for a longer period of time.
After the air has been removed from the opened wine bottle with the vacuum pump, it is sealed at the same time with a reusable rubber wine bottle stopper - airtight.
The pump and caps are affordable and should also find a place in private households.