A1 sauce is a popular sauce that is used in many different dishes. Whether you're using it to make a casserole or a sauce, it is always best to make sure that it is fresh and that it is not expired. However, this is not always the case. There are times when it is hard to tell whether or not the sauce has expired. If you are unsure, it is best to be safe and purchase a new bottle. You'll be able to see the expiry date on the packaging and you'll be able to make sure that it is still good.