If you have ever had to smell the Swedish fermented herring Surströmming, it is often hard to imagine that this is a popular ＿＿（26）＿＿ in Sweden. It was once voted the worst smelling food in the world. Durian fruit has nothing on this little fish – it really ＿＿（27）＿＿. But a lot of people really enjoy the whole process of eating it. Here are two tips to serve and store: First, always store the tin in the fridge when unopened. Do not keep it ＿＿（28）＿＿. Second, always open outdoors because the smell will ＿＿（29）＿＿. Please note most airlines do not allow these tins to be ＿＿（30）＿＿ as they are pressurised (and can you imagine the smell?). So, don't plan to take these tins on any flights.