Random question from a clueless chef... we ordered a chateaubriand from Waitrose as a "back up" option in case our turkey was substituted for a tin of peas at the last minute... anyway it's arrived and says to use by 28th. Does that mean it will be safe to eat on 28th? We have plans on 26/27th so can't eat it until the 28th. It is freezable though. Would you freeze and defrost or just keep in the fridge till the 28th?