I forgot to say I was talking to another guy I know and gave him some Summer Sausage and told him my plans for my ice box 1925-1930 era little fridge and he said I couldnt use it that way (galvanized) but hes gonna remove the Zinc for me so will give updates.I think you may be right for sure , Im just getting started/learning in smoking and am currently re-doing an old ice box for a smoker.