In the case of Aomori Prefecture, where the corona vaccine has finally arrived in Japan, it seems to be a hospital in Hachinohe, and this vaccine needs to be stored at a fairly low temperature, and it will be useless unless it is cooled to -70 °. It is said that it is the current situation in the world that it is difficult to prepare the freezer, which delays the intake considerably. However, according to some information, it is possible to maintain the stability of a normal freezer for about 2 weeks even at about -20 degrees Celsius, so if you arrive early and safely handle it, it may be usable with it, Celsius temperature and Fahrenheit. I don't know the temperature well, so I searched it on the net and looked it up, and it seems that it can be used in a normal freezer.
温度