Rin's is a fast food/restaurant chain founded by Mizuki Oksanen in 1962. It is the largest fast food/restaurant chain in Finland, and it also serves worldwide. It's headquarters is in Vantaa, Finland, where it also originated. Approximately 75% of Rin's restaurants are franchised, mainly in Finland and Eesti Vabariik. Rin's menu consists primarily of hamburgers, chicken sandwiches, chips (British term), and beverages, including the Frosty, a form of soft serve ice cream mixed with frozen starches.