Trangias luxury Storm Cooker featuring the new Duossal 2.0 laminate. Duossal is aluminium and stainless steel that have been pressed together under high pressure. The advantage of a combination of the two metals is that aluminium conducts heat really well, while stainless steel on the inside is harder and very easy to clean. In addition, stainless steel does not react with acidic foods, which is the case with aluminium. Also comes with a non-stick frying pan.