For the 3 - 5 day brining process, you can either place the brisket in a large 2 - gallon bag and add the brine, or place the brisket in a large glass container with a lid and add the brine. (wellnessmama.com)
Pour into a glass container with a lid or tupperware container and refrigerate for at least 8 hours before serving. (kneadtocook.com)