I just took a batch of summer sausage out of the smoker and they looked pretty nice. After I put them in cold water for about 15 minutes , the casings where shriveled and loose on the sausage. This happened to me on some snack sticks also. They were not filled out and smooth like I thought they should be. Can anyone tell me what I am doing wrong. The directions from PS said to bath in cold water after smoking. Thanks.