Many of the products we consume on Shabbos come in commercial packaging - bottles, cartons, bags, cans - which are sealed in various ways. Opening these sealed containers on Shabbos involves many different halachic issues, depending on the materials used in the packaging, the method of sealing, the presence of lettering, and more. It is often difficult to know what is permitted and what is not. Illustrated Guide to Opening Packages on Shabbos shows clearly the types of packaging on the market today, how they are opened, and which halachic issues come into play for each type of packaging. The rulings of modern - day poskim are given, with practical conclusions. Organized, easy to read and follow, with an in - depth Iyun section and filled with full - color photos - here is an indispensable book for keeping Shabbos in the twenty - first century!