Natural sausages that are sell in one piece do not need a refrigerator. Once opened, either, they are preserved. But if it is very hot or they are getting hard, they can be stored longer in the fridge, at the cost of losing flavor. It is one of the most used foods that you should not put in the fridge.
So, don’t ever put the above mentioned 25 things in your fridge if you don’t want their quality to be affected.
It’s best to keep them at room temperature to gain the maximum benefit out of it!