One of the most important questions is how long you need to smoke your sausages, and the answer can depend on how you prefer your sausage cooked. If you set your smoker’s temperature to 155-160 degrees Fahrenheit, you’ll want to ensure your sausages are cooked to an internal temperature of roughly this same range you’re cooking it. This can take anywhere from two to three hours, give or take a few minutes here and there. For people that prefer a smokier flavor on their sausages, it’s recommended to leave your sausages in there for a much longer period of time, as much as 15-20 hours even.