I know how you feel, you want to be able to breath fire, but you are not too keen on putting poisonous chemicals in your mouth. In this Instructable, I'll show you how to blow a 10-foot-high plume of fire out of your mouth. Obviously any activity that involves large quantities of fire has some risk, but this method of firebreathing uses foods as fuel, so there is no danger of poisoning from ingestion of the fuel. Also the fuel is not flamable unless it is aerosolized. This means that if you spill on yourself, your shirt is probably no more likely to catch fire than it was before. With that said, I take no responsibility for your safety.
The companion video provides instuctions and a demonstration.
Step 1: Materials
Fuels intended for human consumption that I have tried with good results are:
Non-dairy coffee creamer - powdered
I like corn starch the best. It has little flavor and produces a flame that burns very quickly with a satifying ripping sound
The most important thing to think about with your flame source is finding something that will not blow out too easily. In the video I used a cotton ball that I soaked in white gas camp fuel and then attached to a wire. Gasoline or alcohol should also work in place of white gas, as will many other things.
Step 2: Gulp and Blow
Take your materials outside and light your flame source.
The idea is to fill your mouth with as much fuel as you can and then blow with as much air as you can. It may be easier to start off smaller the first time. Once you have the fuel in your mouth take a deep breath through your nose.
Blow the fuel at the flame so that the flame touches the bottom part of the powdery cloud that is formed.
The fuels that I have reccomended require a large air to fuel mixture to burn. When the particles are blown into the air, they rapidly combust. The resulting warm air pushes the remaining fuel up as it burns.