If you’re looking to wrap brisket to cook it, freezer paper isn’t the best option.
Freezer paper, as the name suggests, is designed to wrap around foods to be frozen. This includes meat and fish. This paper is often confused with wax paper due to its wax coating, which serves as a barrier of moisture. When freezing meat and fish, this moisture barrier prevents the food from drying out.
This moisture barrier also prevents oil, blood, grease, and liquid from seeping through the paper, which prevents the food from making a mess in the freezer.
To cook brisket, you should wrap it in aluminum foil or a specific butcher paper. Foil is the preferred option because it can maintain heat and oil the best, so it will steam the brisket as well as cook it. You would need to find a specific food grade butcher paper to wrap brisket, which is less easy to find than aluminum foil.