The shelf life of vacuum-packed, pre-cooked sausage in the fridge after taking it out of the freezer depends on several factors, including the type of sausage and how well it was stored.
In general, when you take a sausage out of the freezer and place it in the refrigerator, it can typically be safely kept for 1 to 2 days. This assumes that the sausage was properly cooked before freezing and that it was stored in a vacuum-sealed or airtight package to prevent freezer burn and contamination.
If you plan to keep the sausage for a longer period, it's better to store it in the freezer, where it can stay safe to eat for several months. When stored in the freezer, pre-cooked sausages can maintain their quality for an extended period.
As always, it's essential to use your senses to check for any signs of spoilage, such as unusual odor, off-color appearance, or sliminess. If you notice any of these signs, it's best to discard the sausage, as consuming spoiled food can lead to foodborne illnesses. When in doubt, it's safer to err on the side of caution and dispose of the sausage.