I hang mine anywhere from overnight if it's above 55 degrees to 8-9 days if the temps are 34-38. I hang in my garage most of the time and can regulate the temp by opening the door at night and closing during the day or vica-versa. I leave the skin on and once it's cooled, (even with gallon frozen jugs) the hide holds in and helps regulate the temps. Keeps the deer cold while the outside air warms, by the time the deer starts to warm the temps are dropping. I also moniter a thermometer twice daily.