It's not OK to leave frozen sausage out overnight at room temperature as it can grow bacteria and spoil when it thaws out.
It's best to put the frozen sausage in the refrigerator overnight to allow it to thaw out and then if needed microwave the frozen sausage on the defrost setting in the microwave.
You should not leave frozen sausage out overnight to thaw.
Although it's frozen the sausage will thaw out overnight and once thawed it can begin to grow bacteria and go bad.
To thaw frozen sausage out overnight you should place the frozen sausage in the refrigerator to thaw overnight and then if it's still somewhat frozen by the time you remove it from the refrigerator to cook it you can then use a microwave to defrost and thaw out the frozen sausage.
Cooked sausage can sit out at room temperature for up to 2 hours.
If you have leftover cooked sausage and it's not being served or eaten with 2 hours it should be refrigerated to prevent spoilage.
Cooked sausage can still spoil even at room temperature so always refrigerate the cooked sausage within 2 hours of cooking it.
Raw sausage can also be kept out at room temperature for an hour or 2.
However if it's raw sausage it's best to refrigerate if not cooking it within 20 to 30 minutes.
Raw sausage tends to spoil faster than cooked sausage.
In the refrigerator raw sausage will last for around 2 to 3 days.
In the freezer raw sausage will last for around 6 months to a year.
Cooked sausage will typically last in the refrigerator for up to a week but it's best eaten within a few days of refrigerating it.
The longer the cooked sausage remains in the refrigerator the less tasty it becomes.
Properly stored, cooked sausages will last for 3 to 4 days in the refrigerator although it can remain safe for up to 7 days.
To further extend the shelf life of cooked sausages, freeze them; freeze in covered airtight containers or heavy-duty freezer bags, or wrap tightly with heavy-duty aluminum foil or freezer wrap.