20 minutes ago, KennethT said:Also, it doesn't work with screw caps or with the aggregate corks. Only real cork. It does, however, work really well on older wines - although REALLY old wines need a special super-thin needle to deal with a delicate cork.
They do make screw top adapters that work well. Uses a membrane that self heals, not unlike a vial used for injectables. I haven’t had an issue with aggregate corks. What it doesn’t work with is artificial corks. I had a corker left over from my winemaking days, so I use that to replace artificial corks with real corks. If you’re quick not enough air gets in to make a difference. I used to shoot some argon in after removing the artificial cork, but now I don’t bother.