Hi Robb from Eastern PA. Love smoking and just started into the cold smoke fun. I made my own smoker out of a transportation box very simple. So far have smoked things like nuts,eggs,peppers,cheese,butter,salmon,and now looking at some pork buts.The temp here is in the mid 30s. What I have been reading is that it's not safe to smoke more than a couple hours because of the temp though. What would a preferred smoke time be to smoke an 8lb pork before cooking. Considering the low outside temp?