Is it better to air-dry sausages or dry them?

According to my experience: air-drying, it is generally recommended that you cook sausages in the weather of about 3 degrees. It's best to hang it in a cool and dry place in a ventilated place, and don't directly expose it to the sun. It's cold in a couple of days, so it's easier to dry by punching holes in it at regular intervals with bamboo sticks or small needles.