Fire is critical to any survival situation and that means you have to be able to start it using whatever you have at hand, particularly if your normal fire starting method is not operable.

Using your urine as a lens is one way you can ensure you can start a fire in almost any circumstance.

It is counter-intuitive, but your urine is actually a pretty effective fire starter.

By capturing it in plastic wrap and creating a “ball” you have a lens and that with a little sunlight is all you need to ignite tinder.

Have you ever tried the urine lens approach to starting a fire? If so, let us know below.