For the source text click/tap here: Beitzah 32
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The Gemara discusses opening sealed vessels on Shabbos by cutting or destroying them on Shabbos. As Rashi explains, the Gemara addresses whether the Melachah of Stirah (breaking a usable structure) is involved when one opens a container on Shabbos or Yom Tov.
The Gemara's discussion has common practical ramifications. May one open sealed bottles and other types of food containers on Shabbos or Yom Tov?
There are three possible Melachos involved with opening bottles, cans, and other containers on Shabbos and Yom Tov: Stirah (breaking a usable structure), Boneh or Makeh b'Patish (producing a finished, usable vessel), and Kore'a (tearing). An additional Isur d'Rabanan may apply: even if one does not open the container in a way which forms a usable utensil, the Rabanan prohibited opening the utensil under certain circumstances lest one open it with intention to make it into a usable utensil.
We explore the halacha of opening bottles cans and stuff.