Roscosmos news page from 2009 quotes Alexander Agureev (Александр Агуреев), the head of food/nutrition department of Institute of Biomedical Problems RAS (IBMP)
According to his words, unlike on ISS at the time (2009), in the earlier days on "Mir" space station alcohol tincture was served, apparently, for medical purposes:
“No alcohol-containing ...
There are six types of water on the ISS (nothing on the ISS is simple!)
Note that the potable water has minerals added "for taste".
The shuttle water system added iodine to its potable water by running fuel cell product water through a microbial filter. Minerals were not added to the shuttle potable water.
The US iodinated water and the Russian silver-...