OHOH...how many bottles you talking.
if it were me , i would uncork all add a bucket are carboy, and make sure it was not fermenting, and are degass the wine and recork.
Yes I agree - You are going to have to open them and find out why the corks are being pushed up.
Did you use sorbate ?
Possible MLF
re-fermentation
temperature change ?
air space within the bottle
correct size corks
I screwed up on my very first kit (heavy sediment) and needed to empty all my bottles. For me it wasn't too bad as I had 12 1.5L and 6 750ML to deal with; 18 not 30 bottles. Wine eventually turned out just fine.
OHOH...how many bottles you talking.
if it were me , i would uncork all add a bucket are carboy, and make sure it was not fermenting, and are degass the wine and recork.
You can not re-use the screw tops on screw top bottles and please do not try to add a cork to a screw top bottle, the neck is thinner than other bottles and you take a big chance of splitting the bottles when adding the cork. I do believe they sell the tops for screw tops but you might need special equipment to attach them.