You can freeze it for 2 to 3 months. To freeze coconut beef curry, allow it to cool to room temperature before transferring it to an airtight container. To reheat the curry, remove it from the freezer and allow it to thaw in the fridge overnight. Freezing can sometimes affect the texture of the coconut milk in the curry, causing it to separate. You could add a small amount of cornstarch before freezing, which can help prevent separation.