|Used to identify bars or pubs which sell cocktails|
|Used on these elements|
|Tools for this tag|
Free refills occur when a drink, usually pop, tea or coffee, is allowed to be filled again, free of charge, after being consumed. Free refills are commonplace in America and Canada in traditional restaurants, while rarer in airports, cafés, or service stations. Around the world, the availability of free refills is typically scarce, but varies widely depending on the country and the ownership of the restaurant.
Mistagging happened in Hungary during which certain POIs got tagged with free_refill=* that do not offer free refills in the above sense, but rather offer free filtered/cooled/tap water refilling of metallic containers for non-customers from the street. This should be tagged in a different way and should have a separate wiki page (drink:water:fee=no, drink:water:fee=no @ customers if they place water on your table next to your food, drinking_water:fee=no, ...?). Corrections will happen eventually, but be prepared to encounter mixed up data. 
Maybe the original intent of free_refill=* could also be conveyed more clearly if we used a more specific tag, for example drink:refill=yes/customers/second/... (TODO: please devise a correct scheme if you frequent such places)