Canned herring is notorious. I believe many people are familiar with it. It is said that it is called "the best smell in the world", which combines the "essence" of stinky tofu, rotten eggs, swill, poop and sewer, and is called "biochemical weapon" in food by the public. Although it stinks, Sweden, its birthplace, "loves and hates" it. While promoting canned herring to the world, the production and marketing time and opening method are restricted, and it is specially stipulated that canned herring is not allowed to be opened indoors. Why? Bian Xiao went to "smell it" with everyone.

Although canned herring is a local delicacy in Sweden, due to its special smell, the local government also has clear regulations on its market time. It is said that the third Thursday of August every year is the legal market sales time of canned herring, and it is not allowed to be sold at other times. Bian Xiao thinks this may be because it stinks. If sold all year round, the air in Sweden will be polluted. ?

In addition, the Swedish government also stipulates that canned herring is not allowed to be opened indoors. Bian Xiao thinks that the odor concentration of canned herring may be too high. If the indoor air is not circulated for a long time, the smell may have a certain impact on the human body, so it must be opened outdoors to facilitate the circulation and dissipation of the smell.

In addition, because of the special smell of canned herring, planes in many countries are not allowed to carry it on the plane or even check it in. If the canned herring is broken due to high air pressure, the whole cabin will be attacked by this "biochemical weapon", so even friends who have never eaten canned herring can imagine how smelly it is after reading the above requirements and regulations on canned herring. So do you have the courage to try this canned herring?