In my real younger days...a few of us were riding around and passing the 151 around too...well the question came up of how blue was the flame from the bottle...when a lighter was put to the mouth of the bottle it flashed like a gun...the bottle was dropped in shock. The next thing we knew...the floor mat and carpet were burning....need to say it took 8 beers t put it out and 3 hours to clean up his brothers car....