Any stove regardless of material will hold smoke particulates/soot. The chemicals adhered to the metal are just byproducts of combustion. I have a homemade heavy steel stove for my wall tents, an older galvanized stove and a Seek Medium TI stove. All soot up the same regardless of the type of wood burned. I have used them all over the country burning all different types of wood. If you take a large propane torch and burn out the stove pipe and stove after your hunt it helps a lot as it dries that soot/creosote out. But, you have to be really careful with the galvanized and TI stoves as you can warp them so badly they won’t assemble easily anymore. Burning dry wood or being selective on the types of wood you burn isn’t realistic in most hunting situations. I pick the best wood available and sometimes that is garbage sap filled wood. It just doesn’t matter at all unless you are burning for weeks on end and dampering your stove way down. In my wall tents I will toss wetter chunks in before bed and close the dampers way down so it smolders all night and doesn’t make the tent hotter than a nursing home. That works great, but by the end of a 14 day hunt the stove pipe has a ton of creosote. I just burn it out with the propane torch. In the back country I burn whatever is available and torch the setup when I get home if its really bad. Either way the smaller stoves get stored in a sealed tote and the steel stove goes outside in a shed.