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.