Have the closures been changed?
This morning I wanted to open the two new bottles of vinegar I bought, which only worked with the one at https://migipedia.migros.ch/en/703237900000
even with that I still needed extreme force and it squeezed the vinegar out of the top.
Last time it worked without any effort. ?

https://migipedia.migros.ch/en/103504100000-archived-1
https://migipedia.migros.ch/en/103531300000