Laws of Shabbat
Opening Packages and Containers on Shabbat
Is it permissible to tear open packets of sugar or make a hole in the top corner of a bag of milk on Shabbos?
Opening Containers and Bottles on Shabbat
Opening metal bottle caps, plastic bottle caps and beer bottles on Shabbat
Opening Tin Cans and Packages on Shabbat
Is it Permissible to open tin cans, boxes and packages on Shabbos, in order to get the food inside them?