Is the old popcorn machine in China really dangerous?

It is less likely to be hit by a car when going out, injured by fireworks during the New Year, and eating insects. The principle is the same as that of the domestic pressure cooker except that there is no overpressure exhaust valve, but it is difficult to make it explode even if you want to. Look how thick it is ~ and the design is reasonable. The sealing function of the cover will leak and release pressure after exceeding a certain pressure, and the value of overpressure leakage is far from the pressure difference of explosion. It can be said that the temperature produced by fire can not meet the requirements of explosion. So it is a safe traditional craft, although it scares me every time I listen to it. If you have to say it's dangerous, then you'll end up choosing the safest door elsewhere!