Fire eating can be done outdoors or indoors (if you are well prepared and very careful), in fact it is a little safer done indoors because there is less risk from wind blowing the flames around. Fuelling and refuelling is a quick and simple dip in fuel or a careful ‘squirt’ from a lighter fluid tin. The recommended fire eater fuels are: Lamp oil (a kind of purified paraffin) or lighter fluid for a cleaner burn with less smoke, or barbecue lighter fluid (clean but hotter flame). Otherwise paraffin (kerosene) will do but has stronger odour and more smoke and soot and will make equipment harder to clean.
As with all fire equipment it is important that you avoid over-fuelling the wicks and prevent fuel from running down the shaft onto the grip. This can be done by dipping the wick, then shaking off excess fuel with repeated ‘swishes’ (swipes or flicks) of the wick towards the ground. Failure to do this can result in burning fuel being transferred to your skin / mouth etc..
If you do get fuel on the shaft or grip of your fire eater you should wipe it off with a slightly damp cloth immediately. If you get fuel on your hands or clothes - DON’T light your equipment! Instead, change your clothes and wash fuel off your skin immediately.