Question
Although some (I believe minority although minor be wrong ) of the poskim are machmir in Halacha with prohibiting opening regular plastic bottles due to make B’patish, do they all permit opening a glass bottle since the cap isn’t screwed off but popped off?

Question
Is the concept of davar charif, found in Hilchot Yoreh Deah/Issur Veheter considered as subjective depending on what an Individual finds spicy in Halacha or no, is it universal?