Originating in 1936, the Olympic flame has become an iconic symbol of the games. The torch commemorates the theft of fire from the Greek god Zeus. The torch relay still remains an exciting part of the Games’ opening ceremony. This year it passed through 329 cities in all Brazilian states over a period of 95 days. The torch meets its final destination when it lights an Olympic fire which will burn throughout the duration of the games. The torches have become a real design challenge in the last few years, fusing reliable, modern technology with reliable fuel and materials. In 2016 the Olympic torch was powered by LPG. The torch holds a small cylinder containing 60 grams of LPG which will keep the flame burning constantly and reliably for 18 minutes. A small trigger on the side of the torch ignites the flame. LPG is renowned for instant ignition and a constant heat which incidentally makes it very popular in kitchens. To read about the many benefits of using LPG around the home, please click here.