Storage: The terrine will keep up to two weeks if well-wrapped and refrigerated. Many say terrines improve with age and I agree that they do get better a few days after they are made. I've not tried freezing this terrine but terrines and pâtés don't taste as good if they've been frozen, but you could freeze it if you must. You might think this makes a lot, but trust me, you'll go through it faster than you think.