How long after the use by date can I eat sealed leg of lamb?

While the "use by" date is an important guideline for safety, sealed leg of lamb can often be safe to consume for a short period beyond that date if it has been properly stored in the refrigerator or freezer. Generally, if it has been kept at a consistent cold temperature and shows no signs of spoilage, you might consider using it within a few days to a week after the date. However, always check for any off smells, discoloration, or changes in texture before consuming. When in doubt, it's safer to discard it.