The train made several stops every day. We had thought there would be the opportunity to buy supplies from platform vendors in addition to kiosks. There were no platform vendors. It was way too cold.
Occasionally there was a kiosk open.
An essential part of the stop was to de-ice the bogies. Even the provodnitzas were equipped with a pointed iron bar to do their bit.
Also at each stop they had to chip off the ice which had formed at the end of the waste pipe from the toilet compartments.