With brisket taking a while in the oven, it can be easier to plan ahead and make it in advance. As an added bonus of doing this, you not only make dinner easier by just reheating the meat, but you also get a more flavorful and tender cut of brisket as a result. With the added time, your brisket can absorb more of the flavors and become even more tender when reheated. Store in an airtight container inside your fridge. You can also store your precooked brisket inside your freezer if you'd like to prepare it much longer in advance. Or if you cook too large of a piece, after cooking, you can cut it in half and store that portion in your freezer for an easy-to-make future meal.