From our correspondant, Mike K, in Tomsk, Russia:
This is short and anecdotal.
There are many street kiosks in Tomsk selling everything from bliniis (crepes) to Shashlik (shishkebabs) and Ice cream (they are even open in the -40s). Many places have standing fridges with a glass front where the drinks are kept.
Please take into account that this has been one of the coldest winters in the past century.
What happens when you put a can of coke or fanta in the freezer?
Well, these fridges became freezers in the bitter cold. It has now become a common sight to no longer be able to see through the glass fronts to the kiosk fridges--they have become blackened, oranged and even purpled. The soft drinks explode and freeze on the glass.
I find this humorous. I hope you did as well.