We sewed and stapled two hides together and then put a chimney onto the bottom to aim the smoke up into the sealed hides.The fires had to be tended – keeping the chimney damp, enough hot coals to keep the "punky" wood smoldering and smoking.When your coals aren't hot enough, a blowing tube is employed to bring life to the coals.JV tending his fire after his hide was turned inside out to be smoked on the other side. Not the difference in color between the two hides.