I have a GOSM Big Block. The last 2 times I have smoked I get TBS for a little while and then all of a sudden it turns to thick white smoke. Temp is running 225* to 240* This is the normally where I run my temp. I have done nothing different, same wood etc. I pull the smoker box out dump the wood and start over with fresh wood and then the same thing all over again. Never had this problem before. Any suggestions/thoughts?
