Fire Starting Methods: Are Fire Straws Effective In High Humidity?

Fire Straw Characteristics

Fire straws are simple, lightweight devices consisting of two tubes of varying diameters. When rotated, the vortex created inside the straw draws in oxygen and pushes out carbon monoxide, creating a flame. Effective fire straws typically have a narrow inner tube diameter of around 3-5 mm and a wider outer tube diameter of 10-15 mm.

Fire Starting in Rain

Fire starting in the rain can be challenging due to the high humidity and wet conditions. When air is saturated with moisture, fire straws may not be able to generate enough oxygen to sustain a flame. In such situations, using a fire starter that can generate a high-temperature spark, such as a ferrocerium rod, may be more effective. Additionally, having a waterproof match or lighter can also improve fire starting chances in the rain.

Fire Straw Performance in High Humidity

The performance of fire straws in high humidity depends on various factors, including the air temperature, wind speed, and the straw’s design. Typically, fire straws can generate a flame in humid air with a relative humidity of up to 80%. However, as the humidity exceeds 90%, the effectiveness of the fire straw significantly decreases. In extreme cases, where the air is saturated with moisture, the fire straw may not be able to generate a flame at all.