Dec 05, 2007
While it's a great idea to freeze tofu for at least 24 hours to give it meat-like texture, freezing it in the package, if you get it in those plastic containers, is a BAD idea. The water tends to swell when it freezes, and the package could burst, leading to a big mess. Simmering is also a terrible idea when dealing with plastic. So, if you have a plastic package, which tofu often comes in, remove it from the package, slice it, and freeze it in a freezer bag, then remove and simmer.
—SoCalledVegan